ProGrade Digital’s new CFexpress Type B cards offer read speeds up to 1,700MB/S: Digital Photography Review
|The two capacities available in ProGrade Digital’s ‘Cobalt label’|
The new CFexpress Type B cards use an NVMe host interface with PCIe Gen3 X2 to offer read speeds up to 1,700MB/s and burst write speeds up to 1,500MB/s — that’s 1.7GB/s and 1.5GB/s, respectively for the ‘Cobalt label’ cards. In addition to the ‘Cobalt label’ cards, ProGrade Digital is also launching a line of ‘Gold label’ CFexpress Type B cards that offers up to 1,700MB/s read speeds, but only guarantees a sustained write speed up to 400MB/s, depending on the card capacity.
|The smallest and largest capacity CFexpress Type B cards in ProGrade Digital’s ‘Gold label’|
On the topic of capacity, the ‘Cobalt label’ cards are available in 325GB and 650GB sizes, while the ‘Gold label’ cards come in 128GB, 256GB, 512GB and 1TB sizes. The cards are constructed of a metal enclosure for improved durability and heat dissipation and are both X-ray proof and shock-proof.
The ‘Cobalt label’ cards start at $400 for the 325GB model (Adorama, B&H) and the ‘Gold label’ cards start at $160 for the 128GB model (B&H). All cards come with a three-year warranty and can be found at authorized ProGrade Digital retailers.