The XQD card is a

memory card A memory card is an electronic data storage device used for storing digital information, typically using flash memory. These are commonly used in digital portable electronic devices. They allow adding memory to such devices using a card in a soc ...

format primarily developed for

flash memory Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash memory, NOR flash and NAND flash, are named for the NOR and NAND logic gates. Both u ...

cards. It uses

PCI Express PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards. It is the common m ...

as a data transfer interface. The format is targeted at high-definition

camcorder A camcorder is a self-contained portable electronic device with video camera, video and recording as its primary function. It is typically equipped with an articulating screen mounted on the left side, a belt to facilitate holding on the right s ...

s and high-resolution digital cameras. It offers target read and write speeds from 1 Gbit/s (0.125 GB/s) to about 4 Gbit/s (0.5 GB/s) and storage capabilities beyond 2 TB. The cards are not backward compatible with

CompactFlash CompactFlash (CF) is a flash memory mass storage device used mainly in portable electronic devices. The format was specified and the devices were first manufactured by SanDisk in 1994. CompactFlash became one of the most successful of the ...

or CFast cards, and despite the name similarity, has no connection with the xD-Picture Card. XQD and CFast were both designed as a replacement of the 1994 CompactFlash standard. The format was first announced in November 2010 by

SanDisk SanDisk is a brand for flash memory products, including memory cards and readers, USB flash drives, solid-state drives, and digital audio players, manufactured and marketed by Western Digital. The original company, SanDisk Corporation was acquire ...

Sony , commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professional ...

and

Nikon (, ; ), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging products. The companies held by Nikon form the Nikon Group. Nikon's products include cameras, camera ...

, and was immediately picked up by the CompactFlash Association for development. The final specification was announced in December 2011. XQD version 2.0 was announced in June 2012, featuring support for

PCI Express 3.0 PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial communication, serial computer expansion bus standard, designed to replace the older Conventional PCI, PCI, PCI-X and A ...

with transfer rates up to 8 Gbit/s (1 GB/s). On 7 September 2016 the CFA announced the successor of XQD,

CFexpress CFexpress is a standard for removable media cards proposed by the CompactFlash Association (CFA). The standard uses PCIe 3.0 interface with 1 to 4 lanes where 1 GB/s data can be provided per lane. NVM Express is also supported to provide low over ...

. This new standard uses the same form-factor and interface but uses the NVMe protocol for higher speeds, lower latencies and lower power consumption.

Support

In January 2012, the first XQD card was announced by Sony, declaring a 1 Gbit/s read and write speed. In July 2012,

Lexar Lexar Media, Inc. is a Chinese brand of flash memory products manufactured by the Chinese company Longsys. The Lexar "JumpDrive" trademark was often used synonymously with the term USB flash drives when the technology was first adopted. Histo ...

(owned at the time by Micron) announced plans to support the XQD format. As of 2012, SanDisk and

Kingston Kingston may refer to: Places * List of places called Kingston, including the five most populated: ** Kingston, Jamaica ** Kingston upon Hull, England ** City of Kingston, Victoria, Australia ** Kingston, Ontario, Canada ** Kingston upon Thames, ...

had not announced plans to produce XQD cards. In addition to Sony, as of August 2018, Nikon and Delkin are also manufacturing XQD cards. In late 2018, Lexar – by then under new ownership – announced that it would discontinue support for the XQD format in favour of

, citing problems with control, licensing and product availability.

Hosts

Sony has said their broadcast camcorders (

XDCAM XDCAM is a series of products for digital recording using random access solid-state memory media, introduced by Sony in 2003. Four different product lines the XDCAM SD, XDCAM HD, XDCAM EX and XDCAM HD422 differ in types of en ...

and XDCAM EX) will support the XQD cards. For their broadcast products the XQD card will be classified as a secondary media as XQD is based around consumer technology. Nonetheless, the cards will support acquisition in the broadcast quality MPEG HD422 50 Mbit/s format. On 4 September 2013, Sony released the PXW-Z100, a 4K prosumer camera that records onto XQD cards.

supports XQD cards in its newer high-end DSLR and

mirrorless A mirrorless camera is a photo camera featuring a single, removable lens and a digital display. The camera does not have a reflex mirror or optical viewfinder like a digital single-lens reflex (DSLR) camera, but may have an electronic vi ...

cameras: Nikon D4, Nikon D4s, Nikon D5, Nikon D6, Nikon D850,

Nikon D500 The Nikon D500 is a 20.9-megapixel enthusiast digital single-lens reflex camera using an APS-C sensor. It was announced by Nikon Corporation on January 6, 2016 along with the Nikon D5 full frame camera. D500 replaced the D300S as Nikon's DX forma ...

and Nikon Z6 & Nikon Z7. Phase One XF IQ4 camera system (three bodies) supports XQD cards.

References

External links

CompactFlash Association
{{Memory Cards Computer memory Solid-state computer storage media

Support

Hosts

See also

References

External links