American company ProGrade Digital has announced two new additions to its Iridium CFexpress 4.0 Type A lineup: a 512GB and a 1TB card, both carrying dual VPG certification. The new models extend the Iridium series beyond the 480GB and 960GB cards previously available in the same line.

“ProGrade is introducing two new dual VPG CFexpress Type A cards within our Iridium product family, delivering advanced, future-ready video capture capabilities for professional imaging applications,” said Wes Brewer, CEO and founder of ProGrade Digital. “While cameras supporting both VPG Profiles 4 and 5 are not yet available, these new cards are designed to meet those emerging standards, ensuring full compatibility with today’s cameras while providing the performance and flexibility needed for the next generation of imaging technology.”

Both cards use a PCIe Gen 4 interconnect and an NVMe 1.4c controller interface. Sequential read speeds are rated at up to 1,800 MB/s, with write speeds reaching 1,700 MB/s and sustained write speeds of up to 1,500 MB/s. The dual VPG certification covers both VPG400 and VPG800, designations defined by the CFexpress Association that guarantee a minimum sustained write floor under conditions of continuous stress. VPG400 guarantees a minimum of 400 MB/s and VPG800 guarantees a minimum of 800 MB/s — both figures well above what any currently shipping Sony camera requires for its highest-demand recording modes.

That gap between the card’s certification level and current camera requirements is central to how ProGrade is positioning these products: CFexpress 4.0 is not yet fully supported by any shipping camera body; its speed advantages are accessible at present only when transferring data through a compatible CFexpress 4.0 card reader connected via a sufficiently fast cable. In cameras, the new cards operate in backward compatibility mode with the CFexpress 2.0 standard. The VPG800 certification similarly anticipates camera specifications that do not yet exist in the consumer or professional market.