ProGrade Digital 800GB CFexpress Type B 4.0 VPG 400 Memory Card 2 Pack (Iridium)
- 800GB Storage Capacity
- 3550 MB/s Maximum Read Speed
- 3000 MB/s Maximum Write Speed
- 1500 MB/s Sustained Write Speed
- 400 MB/s Minimum Write Speed
- Records Raw 8K, 6K, and 4K Video
- Optimized for Express Transfers
- Refresh Pro Ready
The ProGrade Digital CFexpress Type B 4.0 VPG 400 (Iridium) memory card is a high-performance storage solution designed for professional photographers and videographers who require reliable, ultra-fast data transfer rates for capturing high-resolution images and videos. This memory card provides ample 800GB space for storing large files, including high-resolution photos and video footage, making it suitable for extended shooting sessions without needing to swap out memory cards.
The card enables quick data access and efficient of 3550 MB/s maximum read speed when downloading content to computers or other devices, minimizing wait times in post-production workflows. Its 3000 MB/s maximum write speed allows for rapid writing of data to the card, which is crucial for capturing high bitrate video formats and burst photography without buffer delays. The 1500 MB/s sustained write speed offers dependable performance for continuous shooting and video recording, ensuring consistent speed without drop-offs that could potentially corrupt data or interrupt recording. The 400 MB/s minimum write speed guarantees a baseline write speed that supports data-intensive tasks, particularly important when recording high-definition video streams.
Product Features in Detail
ProGrade Digital CFexpress Type B 4.0 VPG 400 Memory Card (Iridium)
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 35500MB/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.
Capacity | 400GB / 800GB / 1.6TB |
Read Speed | 3550MB/s |
Write Speed | Up to 3000MB/s |
Refresh Pro | Compatible with Refresh Pro. This tool will ensure that your cards will always perform at their best. (Refresh Pro sold separately) |
Save Battery | Low power consumption for extended battery life when recording continuous video. |
Warranty | 3-year warranty |
Temperature | Operating Temperature: -12°C to 72°C |
Storage Temperature: -20°C to 85°C | |
Form Factor | CFexpress Type-B Cards |
Dimensions | Type B: 29.6mm x 38.5mm x 3.8mm |
This product comes with Limited 3-Year Manufacturer Warranty. Our products are sourced from authorised Australian suppliers and therefore come with genuine Australian warranty. Camera Warehouse does not participate in 'Grey Market' or 'Parallel Import' activities.
ProGrade Digital 800GB CFexpress Type B 4.0 VPG 400 Memory Card 2 Pack (Iridium)

SKU: Prograde Digital 555322
UPC: 850061606037