Engineered for Sony Alpha and FX lines, CFX4-A series unlocks the full potential of the cameras, supporting all video codecs including the slow-and-quick modes in finest HD / 4K in XAVC S-I format which requires up to 890 and 1200 Mbps respectively.
CFexpress is an upgraded version of the CFast 2.0 and XQD. The main difference being faster speed.
Formally, CFexpress is a removable media standard created by the CompactFlash Association (CFA) in September 2016. The further CFexpress 2.0 standard was announced in February 2019, which includes three form factors defined in the standard (Type A, B and C). All form factors leverage the PCIe Gen 3 interface and use established NVMe protocols to offer better efficiency, optimized power and performance for professional imaging and video markets. For more information please visit (https://compactflash.org/).
It signifies the memory card has a minimum sustainable write speed of at least 400 MB/s.
According to the CFA association, Video Performance Guarantee (VPG) is a minimum guaranteed speed specification for writing continuous data streams from applications. The VPG specification is designed for stable high-res video recording (in Pro mirrorless and Pro video cameras). This can ensure that the video stream will be saved without interruptions or dropping frames. The VPG Logo is a “Clapper Board” with a number inside that specifies the minimum guaranteed write speed.
*Sony friends, please note it is important to have the VPG200 / VPG400 standard for your card to be able to unlock full video potential and better performance in buffer clearing.
Please download the Type A chart HERE.
Good luck, but that wouldn’t be wise. Size matters (Type A: 20.0 x 28.0 x 2.8 mm / Type B: 29.6 x 38.5 x 3.8 mm).
Model |
Capacity |
Max Read |
Max Write |
Min Sustained Write |
Form Factor |
Interface |
Video Performance Guarantee |
NAND Flash |
Dimensions | 20.0 x 28.0 x 2.8 mm | ||||
Weight | 0.0044 lbs / 2 g | ||||
Operating Temperature | 10˚F to 162˚F (-12˚C to 72˚C) | ||||
Storage Temperature | -13˚F to 185˚F (-25˚C to 85˚C) | ||||
Warranty | 2 years from the purchase date*4 |