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DisplayPort
DisplayPort
(DP) is a digital display interface developed by a consortium of PC and chip manufacturers and standardized by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, and it can also carry audio, USB, and other forms of data.[2] DisplayPort
DisplayPort
was designed to replace VGA, DVI, and FPD-Link. The interface is backward compatible with other interfaces, such as HDMI and DVI, through the use of either active or passive adapters.

Contents

1 Overview 2 Versions

2.1 1.0 to 1.1 2.2 1.2

2.2.1 1.2a

2.3 1.3 2.4 1.4 2.5 Next version

3 Specifications

3.1 Technical specifications 3.2 Resolution and refresh frequency limits for DisplayPort 3.3 Digital Rights Management (DRM) 3.4 Dual-mode 3.5 Multiple displays on single DisplayPort
DisplayPort
connector 3.6 Cost

4 Advantages over DVI, VGA
VGA
and FPD-Link 5 Comparison with HDMI 6 Market share 7 Companion standards

7.1 Mini DisplayPort 7.2 Micro DisplayPort 7.3 DDM 7.4 Display Stream Compression 7.5 eDP 7.6 iDP 7.7 PDMI 7.8 wDP 7.9 SlimPort 7.10 DisplayID 7.11 DockPort 7.12 USB-C

8 Products

8.1 Support for DisplayPort
DisplayPort
Alternate Mode

9 Participating companies 10 See also 11 Notes 12 References 13 External links

Overview[edit] DisplayPort
DisplayPort
is the first display interface to rely on packetized data transmission, a form of digital communication found in technologies such as Ethernet, USB, and PCI Express. It permits the use of internal and external display connections, and unlike legacy standards that transmit a clock signal with each output, the DisplayPort
DisplayPort
protocol is based on small data packets known as micro packets, which can embed the clock signal within the data stream. This allows for higher resolution using fewer pins.[3] The use of data packets also makes DisplayPort
DisplayPort
extensible, meaning additional features can be added over time without significant changes to the physical interface.[4] DisplayPort
DisplayPort
can be used to transmit audio and video simultaneously, although each is optional and can be transmitted without the other. The video signal path can range from six to sixteen bits per color channel, and the audio path can have up to eight channels of 24-bit, 192 kHz PCM audio that is uncompressed.[2] A bi-directional, half-duplex auxiliary channel carries device management and device control data for the Main Link, such as VESA
VESA
EDID, MCCS, and DPMS standards. In addition, the interface is capable of carrying bi-directional USB
USB
signals.[5] The DisplayPort
DisplayPort
uses an LVDS
LVDS
signal protocol that is not compatible with DVI or HDMI. However, dual-mode DisplayPorts are designed to transmit a single-link DVI or HDMI
HDMI
protocol (TMDS) across the interface through the use of an external passive adapter. This adapter enables compatibility mode and converts the signal from 3.3 volts to 5 volts. For analog VGA/ YPbPr
YPbPr
and dual-link DVI, a powered active adapter is required for compatibility and does not rely on dual mode. Active VGA
VGA
adapters are powered by the DisplayPort
DisplayPort
connector directly, while active dual-link DVI adapters typically rely on an external power source such as USB.[6] Versions[edit] 1.0 to 1.1[edit] The first version, 1.0, was approved by VESA
VESA
on 3 May 2006.[7] Version 1.1a was ratified on 2 April 2007.[8] DisplayPort
DisplayPort
1.0–1.1a allow a maximum bandwidth of 10.8 Gbit/s (8.64 Gbit/s data rate) over a standard 4-lane main link. DisplayPort
DisplayPort
cables up to 2 meters in length are required to support the full 10.8 Gbit/s bandwidth.[9][10] DisplayPort
DisplayPort
1.1 allows devices to implement alternative link layers such as fiber optic, allowing a much longer reach between source and display without signal degradation,[11] although alternative implementations are not standardized. It also includes HDCP in addition to DisplayPort
DisplayPort
Content Protection (DPCP). The DisplayPort 1.1a specification can be downloaded for free from the VESA
VESA
website.[9] 1.2[edit] DisplayPort
DisplayPort
version 1.2 was approved on 22 December 2009. The most significant improvement of the new version is the doubling of the effective bandwidth to 17.28 Gbit/s in High Bit Rate 2 (HBR2) mode, which allows increased resolutions, higher refresh rates, and greater color depth. Other improvements include multiple independent video streams (daisy-chain connection with multiple monitors) called Multi-Stream Transport, facilities for stereoscopic 3D, increased AUX channel bandwidth (from 1 Mbit/s to 720 Mbit/s), more color spaces including xvYCC, scRGB and Adobe RGB 1998, and Global Time Code (GTC) for sub 1 µs audio/video synchronisation. Also Apple Inc.'s Mini DisplayPort
Mini DisplayPort
connector, which is much smaller and designed for laptop computers and other small devices, is compatible with the new standard.[2][12][13][14] 1.2a[edit] DisplayPort
DisplayPort
version 1.2a may optionally include VESA's Adaptive Sync.[15] AMD's FreeSync
FreeSync
uses the DisplayPort
DisplayPort
Adaptive-Sync feature for operation. FreeSync
FreeSync
was first demonstrated at CES 2014 on a Toshiba
Toshiba
Satellite laptop by making use of the Panel-Self-Refresh (PSR) feature from the Embedded DisplayPort
DisplayPort
standard,[16] and after a proposal from AMD, VESA
VESA
later adapted the Panel-Self-Refresh feature for use in standalone displays and added it as an optional feature of the main DisplayPort
DisplayPort
standard under the name "Adaptive-Sync" in version 1.2a.[17] As it is an optional feature, support for Adaptive-Sync is not required for a display to be DisplayPort 1.2a-compliant. 1.3[edit] DisplayPort
DisplayPort
version 1.3 was approved on 15 September 2014.[18] This standard increases overall transmission bandwidth to 32.4 Gbit/s with the new HBR3 mode featuring 8.1 Gbit/s per lane (up from 5.4 Gbit/s with HBR2 in version 1.2), for a total data throughput of 25.92 Gbit/s after factoring in 8b/10b encoding
8b/10b encoding
overhead. This bandwidth is enough for a 4K UHD display (3840 × 2160) at 120 Hz with 24 bit/px RGB color, a 5K display (5120 × 2880) at 60 Hz with 30 bit/px RGB color, or an 8K UHD display (7680 × 4320) at 30 Hz with 24 bit/px RGB color. Using Multi-Stream Transport (MST), a DisplayPort
DisplayPort
port can drive two 4K UHD (3840 × 2160) displays at 60 Hz, or up to four WQXGA (2560 × 1600) displays at 60 Hz with 24 bit/px RGB color. The new standard includes mandatory Dual-mode for DVI and HDMI
HDMI
adapters, implementing the HDMI 2.0 standard and HDCP 2.2 content protection.[19] The Thunderbolt 3
Thunderbolt 3
connection standard was originally to include DisplayPort 1.3 capability, but the final release ended up with only version 1.2. The VESA's Adaptive Sync feature in DisplayPort version 1.3 remains an optional part of the specification.[20] 1.4[edit] DisplayPort
DisplayPort
version 1.4 was published March 1, 2016.[21] No new transmission modes are defined, so HBR3 (32.4 Gbit/s) as introduced in version 1.3 still remains as the highest available mode. DisplayPort 1.4 adds support for Display Stream Compression 1.2 (DSC), Forward Error Correction, HDR10
HDR10
extension defined in CTA-861.3, including static and dynamic metadata, the Rec. 2020
Rec. 2020
color space, and extends the maximum number of inline audio channels to 32.[22] DSC is a "visually lossless" encoding technique with up to a 3:1 compression ratio.[21] Using DSC with HBR3 transmission rates, DisplayPort 1.4 can support 8K UHD (7680 × 4320) at 60 Hz with 30 bit/px RGB color and HDR, or 4K UHD (3840 × 2160) at 120 Hz with 30 bit/px RGB color and HDR. 4K at 60 Hz with 30 bit/px RGB color and HDR can be achieved without the need for DSC. On displays which do not support DSC, the maximum limits are unchanged from DisplayPort 1.3 (4K 120 Hz, 5K 60 Hz, 8K 30 Hz).[23] Next version[edit] According to a roadmap published by VESA
VESA
in September 2016, a new version of DisplayPort
DisplayPort
was intended to be launched in "early 2017". It would have improved the link rate from 8.1 to 10.0 Gbit/s, a 24% increase.[24][25] This would have increased the total bandwidth from 32.4 Gbit/s to 40.0 Gbit/s. It is unclear whether or not the new version would have continued using the 8b/10b scheme for transport encoding like previous versions, but if so, the maximum data rate for video would have been 32.0 Gbit/s. However, no new version was released in 2017, likely delayed to make further improvements after the HDMI
HDMI
Forum announced in January 2017 that their next standard (HDMI 2.1) would offer up to 48 Gbit/s of bandwidth. According to a press release on the 3rd of January 2018, " VESA
VESA
is also currently engaged with its members in the development of the next DisplayPort
DisplayPort
standard generation, with plans to increase the data rate enabled by DisplayPort
DisplayPort
by two-fold and beyond. VESA
VESA
plans to publish this update within the next 18 months."[26]. This implies a bandwidth of around 64.8 Gbit/s for the next version of DisplayPort. Assuming 8b/10b encoding, this would give a data rate of 51.84 Gbit/s. This should allow for uncompressed RGB / YCBCR 4:4:4 video formats as high as:

8K (7680 × 4320) @ 60 Hz 8 bpc (24 bit/px) or 50 Hz 10 bpc (30 bit/px) 5K (5120 × 2880) @ 120 Hz 8 bpc or 100 Hz 10 bpc 4K (3840 × 2160) @ 200 Hz 8 bpc or 180 Hz 10 bpc

Higher resolutions/refresh rates should also be possible through the use of DSC (compression) or chroma subsampling (YCBCR 4:2:2 or 4:2:0). Higher uncompressed formats may also be possible if the new version replaces 8b/10b encoding
8b/10b encoding
with a more efficient encoding method. Specifications[edit] Technical specifications[edit] The DisplayPort
DisplayPort
connector can have one, two, or four differential data pairs (lanes) in a Main Link, each with a raw bit rate of 1.62 (reduced bit rate), 2.7 (high bit rate), 5.4 (HBR2), or 8.1 Gbit/s (HBR3) per lane (6.48, 10.8, 21.6, or 32.4 Gbit/s for a full 4-lane link) with self-clock running at 162, 270, 540, or 810 MHz. The effective data rates after decoding are 1.296, 2.16, 4.32, or 6.486 Gbit/s per lane (5.184, 8.64, 17.28, or 25.92 Gbit/s for a full 4-lane link), or 80% of the total, since data is 8b/10b encoded so each eight bits of information are encoded with a ten-bit symbol.

Forward link channel with 1 to 4 lanes; effective data rate 1.296 (reduced bit rate), 2.16 (high bit rate), 4.32 (HBR2), or 6.48 Gbit/s (HBR3) per lane (total 5.184, 8.64, 17.28, or 25.92 Gbit/s for a 4-lane link). 8b/10b encoding
8b/10b encoding
provides DC-balancing and Embedded Clock within serial channel (10 bit symbols, 20% coding overhead) RGB (unspecified) and YCbCr
YCbCr
( ITU-R BT.601-5 and BT.709-4) color spaces, 4:4:4, 4:2:2, or 4:2:0 chroma subsampling

sRGB, Adobe RGB 1998, DCI-P3, RGB XR, scRGB, xvYCC, Y-only, Simple Color Profile (version 1.2)[27]

Color depth
Color depth
of 6, 8, 10, 12 and 16 bits per color component Optional 8-channel audio with sampling rates up to 24 bit 192 kHz, encapsulation of audio compression formats (including Dolby TrueHD
Dolby TrueHD
and DTS-HD Master Audio
DTS-HD Master Audio
from v1.2)[27] Bidirectional half-duplex AUX channel, 1 Mbit/s (v1.0) or optional 720 Mbit/s "Fast AUX" (v1.2) Stereoscopic
Stereoscopic
3D formats: frame sequential (v1.1a), field sequential, side-by-side, top-bottom, line interleaved, pixel interleaved and dual interface (v1.2)[27] Optional dual-mode facility generates TMDS
TMDS
and clock for single-link DVI/ HDMI
HDMI
signaling using a simple passive dongle for signal level conversion. Up to 63 video and audio streams with time-division transport multiplexing and hot-plug bandwidth allocation (from version 1.2) 128-bit AES DisplayPort
DisplayPort
Content Protection (DPCP), 56-bit High-bandwidth Digital Content Protection (HDCP) 1.3 from version 1.1 onwards, HDCP 2.2 (128-bit AES) from version 1.3. Internal and external connections so that one standard can be used by computer makers reducing costs.[28]

Sample data rates (Gbit/s) required for various display resolutions and timings

Resolution Color Depth Refresh Rate (Hz) Data Rate Required (Gbit/s)

CVT CVT-RB CVT-R2 CEA-861-F

1280 × 7200 8 bpc (24 bit/px) 60 1.79 1.54 1.45 1.78

1920 × 1080 8 bpc (24 bit/px) 60 4.15 3.33 3.20 3.56

1920 × 1080 8 bpc (24 bit/px) 120 8.87 6.85 6.59 7.13

1920 × 1200 10 bpc (30 bit/px) 60 5.81 4.62 4.45 -

2560 × 1440 8 bpc (24 bit/px) 60 9.37 5.80 5.63 -

2560 × 1600 10 bpc (30 bit/px) 60 10.46 8.06 7.82 -

3840 × 2160 8 bpc (24 bit/px) 30 8.14 6.31 6.18 7.13

3840 × 2160 8 bpc (24 bit/px) 60 17.11 12.80 12.54 14.26

3840 × 2400 10 bpc (30 bit/px) 60 23.83 17.78 17.42 -

5120 × 2880 8 bpc (24 bit/px) 60 30.64 22.52 22.18 -

7680 × 4320 8 bpc (24 bit/px) 30 33.63 24.73 24.48 28.51

7680 × 4320 8 bpc (24 bit/px) 60 69.43 50.16 49.65 57.02

Data rates listed are for RGB or YCBCR 4:4:4 pixel format. For YCBCR 4:2:2 chroma subsampling, divide by 1.5; for YCBCR 4:2:0, divide by 2.

Resolution and refresh frequency limits for DisplayPort[edit]

Video Format DisplayPort
DisplayPort
Version / Maximum Data Rate

Shorthand Resolution Refresh Rate (Hz) Data Rate Required[a] 1.0–1.1a 1.2–1.2a 1.3 1.4

8.64 Gbit/s[b] 17.28 Gbit/s[b] 25.92 Gbit/s[b] 25.92 Gbit/s[b]

1080p 1920 × 1080 30 1.58 Gbit/s Yes Yes Yes Yes

60 3.20 Gbit/s Yes Yes Yes Yes

120 6.59 Gbit/s Yes Yes Yes Yes

144 8.00 Gbit/s Yes Yes Yes Yes

240 14.00 Gbit/s No Yes Yes Yes

1440p 2560 × 1440 30 2.78 Gbit/s Yes Yes Yes Yes

60 5.63 Gbit/s Yes Yes Yes Yes

75 7.09 Gbit/s Yes Yes Yes Yes

120 11.59 Gbit/s No Yes Yes Yes

144 14.08 Gbit/s No Yes Yes Yes

165 16.30 Gbit/s No Yes Yes Yes

240 24.62 Gbit/s No 4:2:2[c] Yes Yes

4K 3840 × 2160 30 6.18 Gbit/s Yes Yes Yes Yes

60 12.54 Gbit/s No Yes Yes Yes

75 15.79 Gbit/s No Yes Yes Yes

120 25.82 Gbit/s No 4:2:2[c] Yes Yes

144 31.35 Gbit/s No No 4:2:2[c] DSC[d]

240 54.84 Gbit/s No No 4:2:0[c] DSC[d]

5K 5120 × 2880 30 10.94 Gbit/s No Yes Yes Yes

60 22.18 Gbit/s No 4:2:2[c] Yes Yes

120 45.66 Gbit/s No No 4:2:0[c] DSC[d]

8K 7680 × 4320 30 24.48 Gbit/s No 4:2:2[c] Yes Yes

60 49.65 Gbit/s No No 4:2:0[c] DSC[d]

1.0–1.1a 1.2–1.2a 1.3 1.4

DisplayPort
DisplayPort
Version

^ Uncompressed 8 bpc (24 bit/px) color depth with RGB or YCBCR 4:4:4 color format and CVT-R2 timing are used to calculate these data rates. Uncompressed data rate for RGB images in bits per second is calculated as bits per pixel × pixels per frame × frames per second. Pixels per frame includes blanking intervals as defined by CVT-R2. ^ a b c d Only a portion of DisplayPort's bandwidth is used for carrying video data. DisplayPort
DisplayPort
uses 8b/10b encoding, which means that 80% of the bits transmitted across the link represent data, and the other 20% is used for encoding purposes. The maximum bandwidth of DisplayPort
DisplayPort
(10.8, 21.6, or 32.4 Gbit/s) therefore transports video data at a rate of 8.64, 17.28, or 25.92 Gbit/s. ^ a b c d e f g h Possible using YCBCR format with either 4:2:2 or 4:2:0 chroma subsampling as noted. 4:2:2 subsampling is only supported by DisplayPort
DisplayPort
1.2 and above. 4:2:0 subsampling is only supported by DisplayPort
DisplayPort
1.3 and above. ^ a b c d Possible using Display Stream Compression (DSC), only supported by DisplayPort
DisplayPort
1.4

Digital Rights Management (DRM)[edit] DisplayPort
DisplayPort
1.0 includes optional DPCP ( DisplayPort
DisplayPort
Content Protection) from Philips, which uses 128-bit AES encryption. It also features full authentication and session key establishment (each encryption session is independent). There is an independent revocation system. This portion of the standard is licensed separately. It also adds the ability to verify the proximity of the receiver and transmitter, a technique intended to ensure users are not bypassing the content protection system to send data out to distant, unauthorized users. DisplayPort
DisplayPort
1.1 added optional implementation of industry-standard 56-bit HDCP (High-bandwidth Digital Content Protection) revision 1.3, which requires separate licensing from the Digital Content Protection LLC. DisplayPort
DisplayPort
1.3 supports HDCP 2.2, which is also employed by HDMI
HDMI
2.0. Dual-mode[edit]

Dual-mode DisplayPort
DisplayPort
logo

Dual-mode pin mapping

DisplayPort
DisplayPort
pins DVI/ HDMI
HDMI
mode

Main Link Lane 0 TMDS
TMDS
Channel 2

Main Link Lane 1 TMDS
TMDS
Channel 1

Main Link Lane 2 TMDS
TMDS
Channel 0

Main Link Lane 3 TMDS
TMDS
Clock

AUX CH+ DDC Clock

AUX CH− DDC Data

DP_PWR DP_PWR

Hot Plug Detect Hot Plug Detect

Config 1 Cable Adaptor Detect

Config 2 CEC ( HDMI
HDMI
only)

Dual-mode DisplayPort
DisplayPort
(also known as DisplayPort++[29]) allows devices to directly output single-link HDMI
HDMI
and DVI signals using a simple passive adapter that adjusts from the different connector and the lower voltages used by DisplayPort.[30][31] When a dual-mode transmitter detects that a DVI or HDMI
HDMI
passive adapter is attached, it switches to DVI/ HDMI
HDMI
transmission mode which uses the 4-lane main DisplayPort
DisplayPort
link and the AUX channel link to transmit three TMDS signals, a clock signal and Display Data Channel data/clock. Dual-mode ports are marked with the DP++ logo; most DisplayPort
DisplayPort
graphics cards, as well as all Thunderbolt ports with mDP connector, support this mode. In January 2013, a new VESA
VESA
specification was released called DisplayPort
DisplayPort
Dual-Mode Standard version 1.1, which brings dual-mode capabilities on par with HDMI
HDMI
1.4, allowing a TMDS
TMDS
clock rate of up to 300 MHz, 1080p deep color, 4K resolution, and stereoscopic 3D formats. Passive adapters and ports which support the new data rate will be marked "Type 2" and will be backwards compatible with existing "Type 1" ports.[32] In September 2014, DisplayPort
DisplayPort
1.3 specification was released, which includes mandatory Dual-mode support for HDMI
HDMI
2.0 protocol, allowing 14.4 Gbit/s of bandwidth and 600 MHz pixel clock, and High-bandwidth Digital Content Protection 2.2. A notable limitation of dual-mode is that it can only transmit single-link DVI (and HDMI), as the number of pins in the DisplayPort connector is insufficient for dual-link connections. As a result, an active converter is needed for Dual-Link DVI and analog component video such as VGA. Some of these active adapters can rely on the +3.3 V wire in the DisplayPort
DisplayPort
connector for the conversion, but other types of active conversion, such as Dual-Link DVI, require external power that is often pulled from an available USB
USB
port.[33] VESA
VESA
anticipates that HDMI
HDMI
and DVI conversion will eventually be handled by active adapters which act as DisplayPort
DisplayPort
Sink devices.[citation needed] This will make it easier to allow for updates to the latest HDMI
HDMI
and DisplayPort
DisplayPort
protocols, including dual-link HDMI
HDMI
and dual-link DVI.[citation needed] The benefit also takes into account DisplayPort
DisplayPort
connections with fewer than 4 lanes, different data rates, and multiple DisplayPort
DisplayPort
streams. USB
USB
Type-C connectors with DisplayPort
DisplayPort
Alternate Mode do not support dual-mode transmission (DP++). [34]

Picture of a DisplayPort
DisplayPort
to DVI adapter after removing its enclosure. The chip on the board converts the voltage levels generated by the dual-mode DisplayPort
DisplayPort
device to be compatible with a DVI monitor.

Multiple displays on single DisplayPort
DisplayPort
connector[edit] DisplayPort
DisplayPort
1.2 added support for Multi-Stream Transport (MST), enabling multiple monitors to be used via a single DisplayPort connector. This function requires either a standalone MST hub (i.e., branch device[27]), or monitors that are capable of daisy-chaining thanks to an embedded branch device. The first MST hub became available in September 2013, enabling up to 3 displays to be connected to a single DisplayPort
DisplayPort
connector.[35] Single Stream Transport (SST) was specified in DisplayPort
DisplayPort
1.1a for use between a single Source and Sink Device. Cost[edit] VESA, which created the DisplayPort
DisplayPort
standard, states the standard is royalty free to implement. However, VESA
VESA
also acknowledges that "MPEG LA is making claims that DisplayPort
DisplayPort
implementation requires a license and a royalty payment. It is important to note that these are only claims. Whether these claims are relevant will likely be decided in a US court." [36] A press release by MPEG LA
MPEG LA
states that a royalty rate of $0.20 per unit should apply to DisplayPort
DisplayPort
products manufactured or sold in countries that are covered by one or more of the patents in the MPEG LA
MPEG LA
license pool.[37] As of 1 September 2015, the MPEG LA license includes patents from Hitachi Maxell, Philips, Lattice Semiconductor, Rambus, and Sony.[38] As of October 2017 there still seems to be no royalty, according to the VESA's official FAQ. While the standard may be free to implement, VESA
VESA
requires membership for access to said standards.[39] The minimum cost is presently $5,000.[40] Advantages over DVI, VGA
VGA
and FPD-Link[edit]

This article contains embedded lists that may be poorly defined, unverified or indiscriminate. Please help to clean it up to meet Wikipedia's quality standards. Where appropriate, incorporate items into the main body of the article. (November 2010)

In December 2010, several computer vendors and display makers including Intel, AMD, Dell, Lenovo, Samsung and LG announced they would begin phasing out FPD-Link, VGA, and DVI-I over the next few years, replacing them with DisplayPort
DisplayPort
and HDMI.[41][42] One notable exception to the list of manufacturers is Nvidia, who has yet to announce any plans regarding future implementation of legacy interfaces. DisplayPort
DisplayPort
has several advantages over VGA, DVI, and FPD-Link.[43]

Open standard available to all VESA
VESA
members[dubious – discuss] with an extensible standard to help broad adoption[44] Fewer lanes with embedded self-clock, reduced EMI with data scrambling and spread spectrum mode Based on a micro-packet protocol

Allows easy expansion of the standard with multiple data types Flexible allocation of available bandwidth between audio and video Multiple video streams over single physical connection (version 1.2) Long-distance transmission over alternative physical media such as optical fiber (version 1.1a)

High-resolution displays and multiple displays with a single connection, via a hub or daisy-chaining[45]

HBR2 mode with 17.28 Gbit/s of effective video bandwidth allows four simultaneous 1080p60 displays ( CEA-861 timings), two 2560 × 1600 × 30 bit @ 120 Hz (CVT-R timings), or 4K UHD @ 60 Hz[note 1] HBR3 mode with 25.92 Gbit/s of effective video bandwidth, using CVT-R2 timings, allows eight simultaneous 1080p displays (1920 × 1080) @ 60 Hz, stereoscopic 4K UHD (3840 × 2160) @ 120 Hz, or 5120 × 2880 @ 60 Hz each using 24 bit RGB, and up to 8K UHD (7680 × 4320) @ 60 Hz using 4:2:0 subsampling[46]

Designed to work for internal chip-to-chip communication

Aimed at replacing internal FPD-Link
FPD-Link
links to display panels with a unified link interface Compatible with low-voltage signaling used with sub-micron CMOS fabrication Can drive display panels directly, eliminating scaling and control circuits and allowing for cheaper and slimmer displays

Link training with adjustable amplitude and preemphasis adapts to differing cable lengths and signal quality

Reduced bandwidth transmission for 15-metre (49 ft) cable, at least 1920 × 1080p @ 60 Hz at 24 bits per pixel Full bandwidth transmission for 3 metres (9.8 ft)

High-speed auxiliary channel for DDC, EDID, MCCS, DPMS, HDCP, adapter identification etc. traffic

Can be used for transmitting bi-directional USB, touch-panel data, CEC, etc.

Self-latching connector

Comparison with HDMI[edit] Although DisplayPort
DisplayPort
has much of the same functionality as HDMI, it is a complementary connection used in different scenarios.[30][47] A dual-mode DisplayPort
DisplayPort
port can emit an HDMI
HDMI
signal via a passive adapter. HDMI
HDMI
charges an annual fee of US$10,000 to each high-volume manufacturer and a per-unit royalty rate of US$0.04 to US$0.15.[48] HDMI
HDMI
Licensing countered the "royalty-free" claim by pointing out that the DisplayPort
DisplayPort
specification states that companies can charge a royalty rate for DisplayPort
DisplayPort
implementation.[49] DisplayPort
DisplayPort
1.2 has more bandwidth at 21.6 Gbit/s[50] (17.28 Gbit/s with overhead removed) as opposed to HDMI
HDMI
2.0's 18 Gbit/s[51] (14.4 Gbit/s with overhead removed). DisplayPort
DisplayPort
1.3 raises that to 32.4 Gbit/s (25.92 Gbit/s with overhead removed), and HDMI
HDMI
2.1 raises that up to 48 Gbit/s (42.67 Gbit/s with overhead removed), adding an additional TMDS
TMDS
link in place of clock lane. DisplayPort
DisplayPort
also has the ability to share this bandwidth with multiple streams of audio and video to separate devices. DisplayPort
DisplayPort
in native mode lacks some HDMI
HDMI
features such as Consumer Electronics Control (CEC) commands. The CEC bus allows linking multiple sources with a single display and controlling any of these devices from any remote;[10][52][53]. DisplayPort
DisplayPort
1.3 added the possibility of transmitting CEC commands over the AUX channel[54] DisplayPort
DisplayPort
Multi-Stream Transport also allows connecting two or three devices together by simultaneously driving multiple displays from a single output port. This feature can be used to have multiple display monitors from a single computers. HDMI
HDMI
uses unique Vendor-Specific Block structure, which allows for features such as additional color spaces. However, these features can be defined by CEA EDID extensions.[citation needed] Market share[edit] Figures from IDC show that 5.1% of commercial desktops and 2.1% of commercial notebooks released in 2009 featured DisplayPort. However, they predicted that the figure for commercial desktops would grow to 89.5%, and for commercial notebooks to 95% by 2014.[41][needs update] The main factor behind this is the phase-out of VGA, and that both Intel and AMD will also stop building products with FPD-Link
FPD-Link
by 2013. Nearly 70% of LCD monitors sold in August 2014 in the US, UK, Germany, Japan, and China were equipped with HDMI/ DisplayPort
DisplayPort
technology, up 7.5% on the year, according to Digitimes Research.[55] Companion standards[edit] Mini DisplayPort[edit] Main article: Mini DisplayPort Mini DisplayPort
Mini DisplayPort
(mDP) is a standard announced by Apple in the fourth quarter of 2008. Shortly after announcing Mini DisplayPort, Apple announced that it would license the connector technology with no fee. The following year, in early 2009, VESA
VESA
announced that Mini DisplayPort
DisplayPort
would be included in the upcoming DisplayPort
DisplayPort
1.2 specification. On 24 February 2011, Apple and Intel announced Thunderbolt, a successor to Mini DisplayPort
Mini DisplayPort
which adds support for PCI Express
PCI Express
data connections while maintaining backwards compatibility with Mini DisplayPort
Mini DisplayPort
based peripherals.[56] Micro DisplayPort[edit] Micro DisplayPort
DisplayPort
will target systems that need ultra-compact connectors, such as phones, tablets and ultra-portable notebook computers. This new standard will be physically smaller than the currently available Mini DisplayPort
Mini DisplayPort
connectors. The standard was expected to be released by Q2 2014.[57] This project seems aborted to be replaced by DisplayPort
DisplayPort
Alt Mode for USB
USB
Type-C Standard.[58] DDM[edit] Direct Drive Monitor (DDM) 1.0 standard was approved in December 2008. It allows for controller-less monitors where the display panel is directly driven by the DisplayPort
DisplayPort
signal, although the available resolutions and color depth are limited to two-lane operation. Display Stream Compression[edit] Display Stream Compression (DSC) uses a visually lossless low-latency algorithm based on delta PCM coding and YCoCg-R color space; it allows increased resolutions and color depths and reduced power consumption.[59][60] DSC has been tested to meet the requirements of ISO/IEC 29170-2 Evaluation procedure for nearly lossless coding using various test patterns, noise, subpixel-rendered text (ClearType), UI captures, and photo and video images.[60] DSC version 1.0 was released on March 10, 2014, but was soon deprecated by DSC version 1.1 released on August 1, 2014. The DSC standard supports up to 3:1 compression ratio with constant or variable bit rate, 4:4:4 chroma subsampling, optional 4:2:2 conversion and 6/8/10/12 bits per color component. DSC version 1.2 was released on January 27, 2016 and is included with DisplayPort
DisplayPort
1.4; version 1.2a was released on January 18, 2017. The update includes native encoding of 4:2:2 and 4:2:0 formats in pixel containers, 14/16 bits per color, and minor modifications to the encoding algorithm. DSC compression works on a horizontal line of pixels encoded using groups of three consecutive pixels for native 4:4:4 and simple 4:2:2 formats, or six pixels (three compressed containers) for native 4:2:2 and 4:2:0 formats. If RGB encoding is used, it is first converted to reversible YCgCo. Simple conversion from 4:2:2 to 4:4:4 can add missing chroma samples by interpolating neighboring pixels. Each luma component is coded separately using three independent substreams (four substreams in native 4:2:2 mode). Prediction step is performed using one of the three modes: modified median adaptive coding (MMAP) algorithm similar to the one used by JPEG-LS, block prediction (optional for decoders due to high computational complexity, negotiated at DSC handshake), and midpoint prediction. Bit rate control algorithm tracks color flatness and buffer fullness to adjust the quantization bit depth for a pixel group in a way that minimizes compression artifacts while staying within the bitrate limits. Repeating recent pixels can be stored in 32-entry Indexed Color History (ICH) buffer, which can be referenced directly by each group in a slice; this improves compression quality of computer-generated images. Alternatively, prediction residuals are computed and encoded with entropy coding algorithm based on delta size unit-variable length coding (DSU-VLC). Encoded pixel groups are then combined into slices of various height and width; common combinations include 100% or 25% picture width, and 8-, 32-, or 108-line height. On January 4, 2017, HDMI
HDMI
2.1 was announced which supports up to 10K resolution and uses DSC 1.2 for video that is higher than 8K resolution with 4:2:0 chroma subsampling.[61][62][63] eDP[edit] Embedded DisplayPort
DisplayPort
(eDP) 1.0 standard was adopted in December 2008. It aims to define a standardized display panel interface for internal connections; e.g., graphics cards to notebook display panels.[64] It has advanced power-saving features including seamless refresh rate switching. Version 1.1 was approved in October 2009 followed by version 1.1a in November 2009. Version 1.2 was approved in May 2010 and includes DisplayPort
DisplayPort
1.2 data rates, 120 Hz sequential color monitors, and a new display panel control protocol that works through the AUX channel.[12] Version 1.3 was published in February 2011; it includes a new Panel Self-Refresh (PSR) feature developed to save system power and further extend battery life in portable PC systems.[65] PSR mode allows GPU to enter power saving state in between frame updates by including framebuffer memory in the display panel controller.[12] Version 1.4 was released in February 2013; it reduces power consumption with partial-frame updates in PSR mode, regional backlight control, lower interface voltage, and additional link rates; the auxiliary channel supports multi-touch panel data to accommodate different form factors.[66] Version 1.4a was published in February 2015; it is based on DisplayPort
DisplayPort
1.3 and supports HBR3 data rate, Display Stream Compression 1.1, Segmented Panel Displays, and partial updates for Panel Self-Refresh.[67] Version 1.4b was published in October 2015; its protocol refinements and clarifications are intended to enable adoption of eDP 1.4 in production by mid-2016.[68] iDP[edit] Internal DisplayPort
DisplayPort
(iDP) 1.0 was approved in April 2010. The iDP standard defines an internal link between a digital TV system on a chip controller and the display panel's timing controller. It aims to replace currently used internal FPD-Link
FPD-Link
lanes with DisplayPort connection.[69] iDP features unique physical interface and protocols, which are not directly compatible with DisplayPort
DisplayPort
and are not applicable to external connection, however they enable very high resolution and refresh rates while providing simplicity and extensibility.[12] iDP features non-variable 2.7 GHz clock and is nominally rated at 3.24 Gbit/s data rate per lane, with up to sixteen lanes in a bank, resulting in six-fold decrease in wiring requirements over FPD-Link
FPD-Link
for a 1080p24 signal; other data rates are also possible. iDP was built with simplicity in mind and it doesn't have AUX channel, content protection, or multiple streams; however it does have frame sequential and line interleaved stereo 3D.[12] PDMI[edit] Portable Digital Media Interface (PDMI) is an interconnection between docking stations/display devices and portable media players, which includes 2-lane DisplayPort
DisplayPort
v1.1a connection. It has been ratified in February 2010 as ANSI/CEA-2017-A. wDP[edit] Wireless DisplayPort
DisplayPort
(wDP) enables DisplayPort
DisplayPort
1.2 bandwidth and feature set for cable-free applications operating in 60 GHz radio band; it was announced on November 2010 by WiGig Alliance and VESA
VESA
as a cooperative effort.[70] SlimPort[edit]

A SlimPort-to- HDMI
HDMI
adapter, made by Analogix

SlimPort, a brand of Analogix products,[71] complies with Mobility DisplayPort, also known as MyDP, which is an industry standard for a mobile audio/video Interface, providing connectivity from mobile devices to external displays and HDTVs. SlimPort implements the transmission of video up to 4K-UltraHD and up to eight channels of audio over the micro- USB
USB
connector to an external converter accessory or display device. SlimPort products support seamless connectivity to DisplayPort, HDMI
HDMI
and VGA
VGA
displays.[72] The MyDP standard was released in June 2012,[73] and the first product to use SlimPort was Google's Nexus 4
Nexus 4
smartphone.[74] SlimPort is an alternative to Mobile High-Definition Link (MHL).[75][76] DisplayID[edit] Main article: DisplayID DisplayID is designed to replace the E- EDID standard. DisplayID features variable-length structures which encompass all existing EDID extensions as well as new extensions for 3D displays
3D displays
and embedded displays. The latest version 1.3 (announced on 23 September 2013) adds enhanced support for tiled display topologies; it allows better identification of multiple video streams, and reports bezel size and locations.[77] As of December 2013, many current 4K displays use a tiled topology, but lack a standard way to report to the video source which tile is left and which is right. These early 4K displays, for manufacturing reasons, typically use two 1920×2160 panels laminated together and are currently generally treated as multiple-monitor setups.[78] DisplayID 1.3 also allows 8K display discovery, and has applications in stereo 3D, where multiple video streams are used. DockPort[edit] Main article: DockPort DockPort, formerly known as Lightning Bolt, is an extension to DisplayPort
DisplayPort
to include USB
USB
3.0 data as well as power for charging portable devices from attached external displays. Originally developed by AMD and Texas Instruments, it has been announced as a VESA specification in 2014.[79] USB-C[edit] Main article: USB-C On 22 September 2014, VESA
VESA
published the DisplayPort
DisplayPort
Alternate Mode on USB
USB
Type-C Connector Standard, a specification on how to send DisplayPort
DisplayPort
signals over the newly released USB-C
USB-C
connector. One, two or all four of the differential pairs that USB
USB
uses for the SuperSpeed bus can be configured dynamically to be used for DisplayPort
DisplayPort
lanes. In the first two cases, the connector still can carry a full SuperSpeed signal; in the latter case, at least a non-SuperSpeed signal is available. The DisplayPort
DisplayPort
AUX channel is also supported over the two sideband signals over the same connection; furthermore, USB
USB
Power Delivery according to the newly expanded USB-PD 2.0 specification is possible at the same time. This makes the Type-C connector a strict superset of the use-cases envisioned for DockPort, SlimPort, Mini and Micro DisplayPort.[80] Products[edit]

A Dual-mode DisplayPort
DisplayPort
connector

Since its introduction in 2006, DisplayPort
DisplayPort
has gained popularity within the computer industry and is featured on many graphic cards, displays, and notebook computers. Dell
Dell
was the first company to introduce a consumer product with a DisplayPort
DisplayPort
connector, the Dell UltraSharp 3008WFP, which was released in January 2008.[81] Soon after, AMD and Nvidia
Nvidia
released products to support the technology. AMD included support in the Radeon HD 3000 series of graphics cards, while Nvidia
Nvidia
first introduced support in the GeForce 9 series
GeForce 9 series
starting with the GeForce 9600 GT.[82][83]

A Mini DisplayPort
Mini DisplayPort
connector

Later the same year, Apple introduced several products featuring a Mini DisplayPort.[84] The new connector – proprietary at the time – eventually became part of the DisplayPort
DisplayPort
standard, however Apple reserves the right to void the license should the licensee "commence an action for patent infringement against Apple".[85] In 2009, AMD followed suit with their Radeon HD 5000 Series
Radeon HD 5000 Series
of graphics cards, which featured the Mini DisplayPort
Mini DisplayPort
on the Eyefinity versions in the series.[86] Nvidia
Nvidia
launched NVS 810 with 8 Mini DisplayPort
Mini DisplayPort
outputs on a single card on 4 November 2015.[87]

Nvidia
Nvidia
revealed the GeForce GTX 1080, the world's first graphics card with DisplayPort
DisplayPort
1.4 support on May 6, 2016.[88] AMD followed with the Radeon RX 480 to support Displayport 1.3/1.4 on June 29, 2016.[89] The Radeon RX 400 Series will support DisplayPort
DisplayPort
1.3 HBR and HDR10, dropping the DVI connector(s) in the reference board design. In February 2017, VESA
VESA
and Qualcomm announced that DisplayPort
DisplayPort
Alt Mode video transport will be integrated into the Snapdragon
Snapdragon
835 mobile chipset, which powers smartphones, VR/AR head-mounted displays, IP cameras, tablets and mobile PCs.[90] Support for DisplayPort
DisplayPort
Alternate Mode[edit] The following devices have USB
USB
Type-C ports that implement the DisplayPort
DisplayPort
Alternate Mode on USB
USB
Type-C Connector Standard specification, and are capable of providing a video output to DisplayPort, HDMI
HDMI
and VGA.[91][92] SlimPort products are also compatible with DisplayPort
DisplayPort
Alternate Mode over USB
USB
Type-C.[93] This list is incomplete; you can help by expanding it.

Device name Device type

MacBook (Early 2015) and newer MacBook Pro (Late 2016) and newer macOS laptop

Chromebook Pixel
Chromebook Pixel
2015 Chrome OS laptop

Acer Chromebook R13 Chrome OS laptop

Dell XPS
Dell XPS
12 (9250) Dell XPS
Dell XPS
13 (9350) Dell XPS
Dell XPS
15 (9550, 9560) Windows 10/Ubuntu laptop

HP EliteBook
HP EliteBook
Folio G1 Windows 10 laptop

HP Spectre 13 Windows 10 laptop

Asus Zenbook
Asus Zenbook
3 Windows 10 laptop

Lenovo Thinkpad
Lenovo Thinkpad
T450 Windows 10 laptop

Lenovo Thinkpad
Lenovo Thinkpad
T470 Windows 10 laptop

Lenovo Thinkpad
Lenovo Thinkpad
T470s Windows 10 laptop

Lenovo Thinkpad
Lenovo Thinkpad
X1 Carbon (2017) Windows 10 laptop

Lenovo
Lenovo
Yoga 900 Windows 10 Convertible laptop

Huawei MateBook
Huawei MateBook
(vendor lock-in to matedock) Windows 10 Convertible laptop

Fujitsu
Fujitsu
U745 Windows 10 laptop

Cube i7 Book Windows 10 Convertible laptop

HP Spectre x360 Windows 10 Convertible laptop

Microsoft Surface Book 2 Windows 10 Convertible laptop

Asus Zen AiO Windows 10 All-in-One PC

Asus ZenFone 3 Ultra Android phablet

HTC 10 Android smartphone

HTC U Ultra Android smartphone

HTC U 11 Android smartphone

LG G5 Android smartphone

LG V20 Android phablet

LG V30 Android smartphone

Samsung Galaxy S8
Samsung Galaxy S8
(also works with Samsung DeX) Android smartphone

Samsung Galaxy Note 8
Samsung Galaxy Note 8
(also works with Samsung DeX) Android smartphone

Microsoft Lumia 950
Microsoft Lumia 950
(also works with Microsoft Display Dock) Windows 10 Mobile smartphone

Microsoft Lumia 950
Microsoft Lumia 950
XL (also works with Microsoft Display Dock) Windows 10 Mobile smartphone

HP Elite x3
HP Elite x3
(also works with Desk Dock or Lap Dock) Windows 10 Mobile smartphone

Acer Liquid Jade Primo Windows 10 Mobile smartphone

Participating companies[edit] The following companies have participated in preparing the drafts of DisplayPort, eDP, iDP, DDM or DSC standards:

Agilent Altera AMD Graphics Product Group Analogix[94] Apple Astrodesign BenQ Broadcom
Broadcom
Corporation Chi Mei Optoelectronics Chrontel[95] Dell Display Labs Foxconn
Foxconn
Electronics FuturePlus Systems Genesis Microchip[96] Gigabyte Technology Hardent Hewlett-Packard Hosiden Hirose Electric Group Intel intoPIX I-PEX Integrated Device Technology JAE Electronics Kawasaki Microelectronics (K-Micro) Lenovo LG Display Luxtera Molex NEC NVIDIA NXP Semiconductors Xi3 Corporation Parade Technologies Realtek
Realtek
Semiconductor Samsung[97] SMK STMicroelectronics SyntheSys Research Inc. Tektronix Texas Instruments TLi Tyco Electronics ViewSonic VTM

The following companies have additionally announced their intention to implement DisplayPort, eDP or iDP:

Acer ASRock[98] Biostar Chroma BlackBerry Circuit Assembly DataPro[99] Eizo Fujitsu Hall Research Technologies ITE Tech. Matrox Graphics Micro-Star International[100] MStar Semiconductor Novatek Microelectronics Corp. Palit Microsystems Ltd. Pioneer Corporation S3 Graphics Toshiba Philips Quantum Data Sparkle Computer Unigraf Xitrix

See also[edit]

HDBaseT HDMI List of video connectors Thunderbolt (interface)

Notes[edit]

^ Dual-link DVI
Dual-link DVI
is limited in resolution and speed by the quality and therefore the bandwidth of the DVI cable, the quality of the transmitter, and the quality of the receiver; can only drive one monitor at a time; and cannot send audio data. HDMI
HDMI
1.3 and 1.4 are limited to effectively 8.16 Gbit/s or 340 MHz (though actual devices are limited to 225–300?MHz), and can only drive one monitor at a time. VGA
VGA
connectors have no defined maximum resolution or speed, but their analog nature limits their bandwidth, though can provide long cabling only limited by appropriate shielding.

References[edit]

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MPEG LA
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VGA
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DisplayPort
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veröffentlicht DisplayPort
DisplayPort
1.3". heise online. Retrieved 27 January 2016.  ^ "The Truth About DisplayPort
DisplayPort
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DisplayPort
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HDMI
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HDMI
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HDMI
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HDMI
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DisplayPort
CEC-Tunneling-over-AUX". Cisco. Retrieved 3 January 2018.  ^ Digitimes Research: Proportion of HDMI/ DisplayPort
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technology in LCD monitors increases 7.5pp in August ^ "Thunderbolt Technology: The Fastest Data Connection to Your PC Just Arrived" (Press release). Intel. 24 February 2011. Retrieved 24 February 2011.  ^ " VESA
VESA
Begins Development of micro- DisplayPort
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HDMI
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HDMI
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HDMI
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Issues Updated Embedded DisplayPort
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Rolls Out Production-Ready Embedded DisplayPort
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Highlights Growing DisplayPort
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Developments at Mobile World Congress ^ Rise of USB
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VESA
Membership - DisplayPort ^ DisplayPort
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External links[edit]

Crowdsourced comparison table EN-FR video connectors DisplayPort
DisplayPort
- the official site operated by VESA Bridging the new DisplayPort
DisplayPort
standard Introducing the Panel Self Refresh Technology SlimPort Consumer website SlimPort Enabled Devices

v t e

Audio and video connectors

Analog audio

Banana plug Binding post D-subminiature Euroblock DIN

Mini-DIN

Jack plug RCA Speaker spring terminal Speakon XLR

Digital audio

BNC D-sub S/PDIF TOSLINK XLR

Video

BNC Component RGB Component YPbPr Composite video D-Terminal DB13W3 DFP DIN

Mini-DIN

DMS-59

LFH

DVI

Mini-DVI Micro-DVI

RCA S-Video VGA

Mini-VGA

Audio and Video

ADC Belling-Lee EVC Type F HDBaseT HDMI DisplayPort

mDP

MHL (superMHL) Minijack P&D PDMI SCART

Visual charts

List of video connectors

Other

Thunderbolt USB

v t e

Audio and video interfaces and connectors

Audio only

Analog

Interface: PC System Design Guide Connectors: TRS 3.5 mm Interface: Balanced audio Connectors: TRS 6.53 mm XLR

Digital

Interface: S/PDIF Connectors: RCA jack (coaxial) TOSLINK
TOSLINK
(optical) BNC Interface: AES3
AES3
(AES/EBU) Connectors: RCA jack XLR TOSLINK
TOSLINK
(optical) BNC

Video only

Analog

Interface: VGA Connectors: DB-15 DVI-A Interface: Composite Connectors: RCA jack yellow Interface: S-Video Connectors: Mini-DIN 4 Pin Interface: Component Connectors: RCA jacks × 3 Interface: Composite S-Video, and Component Connectors: VIVO using Mini-DIN 9 Pin

Digital and analog

Interface: DVI Connectors: DVI-I/DVI-D

Video and audio

Digital

Interface: HDMI Connectors: HDMI
HDMI
connector Interface: DisplayPort Connectors: DisplayPort
DisplayPort
connector Interface: HDBaseT Connecto

.