CFexpress

A CFexpress Type B card runs over PCIe Gen3 x2 with the NVMe protocol — the same stack that serves an M.2 SSD inside a computer, only in a removable body. Peak read and write performance approaches 1700 and 1500 MB/s, but for recording the number that matters is the minimum sustained write speed: a dropped frame in 8K video or a gap in a telemetry stream cannot be recovered afterwards. High performance here means a flat write curve, not a high peak.

Beyond broadcast and cinema cameras, the format is used in machine vision, drone and mapping payloads, medical imaging, in-vehicle recorders and industrial data loggers. In embedded systems the card is often the only removable medium in the device, so it must tolerate hot swap, vibration and condensation — routine conditions outdoors in the Nordic region. Where speed matters less than compatibility with existing hardware, CFast and industrial SD and microSD cards remain the practical choice.

Check the host first: Type A, B and C are not interchangeable, and a device built for XQD may need a firmware update before it recognises CFexpress. Then look for a declared minimum sustained write figure rather than a marketing maximum. For industrial applications, reliability is defined by supply continuity as much as by the datasheet, so a fixed bill of materials is worth more than a faster consumer model.

We confirm lead times, NAND type and firmware revision before the purchase order and provide samples for validation on your equipment. If a part reaches end of life, our engineers select an equivalent and support its introduction into your product. The full range of formats is available in the Memory and Storage catalogue.