ProGrade Digital CFexpress 4.0 Type B Card Iridium Series 400 GB £157.99 (Was £184.99)
Amazon UK have big savings on ProGrade Digital CFexpress 4.0 Type B Card Iridium Series cards currently. The Iridium series is the highest performing CFexpress 4.0 Type B card in the maker’s range. CFexpress 4.0 Type B Iridium Delivers: Fully compliant with CompactFlash™ Association 4.0 specification and backwards compatible with 2.0 specification NVMe host interface with PCIe Gen4 X2 interconnect Low standby power through NVMe PS0 – PS4 support, enabling extended battery life Metal enclosure for improved durability and heat dissipation Thermal throttling protects the card from overheating Laser etched unique serial numbering for the tracking of key components and manufacturing data for the highest quality control Temperature ranges: operating…
CFexpress Type B cards: Which to choose for the Canon EOS R5 and Nikon Z8?
Update August 2025: Since this post was published, most brands now offer CFexpress gen 4.0 cards, replacing many of those listed below in performance terms. Minimum sustained write speeds have improved greatly, making many more lower-priced cards suitable for high-grade 4/8K in-camera capture. Nevertheless, due diligence is still required with these cards. That said, one further benefit of the new type 4.0 standard is a sizeable reduction in the price of the high-end high-speed gen 2.0/3.0 cards listed below. CFexpress (Type B) cards are expensive, so choosing the right type is an important decision. As both the Canon EOS R5 and Nikon Z8 have a second SDXC UHS-I/II compatible card…
