ProGrade Digital CFexpress™ Type B 4.0 VPG 400 Memory Card (Iridium) main image

ProGrade Digital CFexpress™ Type B 4.0 VPG 400 Memory Card (Iridium)


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ProGrade Digital has developed its new CFexpress™ Type B 4.0 Iridium class memory cards with next-generation performance leveraging PCIe Gen 4 interconnect with NVMe host controller interface for use in future Mirrorless, DSLR and high-definition cinema cameras. Available in  400GB, 800GB, and 1.6TB capacity and performance levels provide read speeds up to 3550MB/s – CFexpress Type B cards are ideal for quickly off-loading high volumes of video or RAW photos and sustained write speeds up to 850MB/s and 1500MB/s respectively – perfect for uninterrupted, cinematic capture of RAW 4K or 6K video. The CFexpress Type B Iridium cards are VPG400 rated.

NOTE: Current CFexpress cameras will not be able to take advantage of the maximum speed of this card. Until CFexpress 4.0 cameras are introduced, the benefit of this card is tripling the speed of your workflow when downloading content with the ProGrade Digital PG05.6 USB 4.0 Reader.


  • 400GB / 800GB / 1.6TB Storage Capacity
  • Max Read Speed: 3550MB/s
  • Sustained Write Speed: 850 MB/s / 1550MB/s respectively
  • Min Write Speed: 2850 MB/s
  • Records Raw 8K, 6K, and 4K Video
  • Compatible with Refresh Pro
Brand ProGrade Digital

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