Memory Cards

The card you need is dictated by your camera's slot and your recording demands, so start there: SD (UHS-I or UHS-II), CFexpress Type A, and CFexpress Type B are not interchangeable, and the body decides which one fits. After format, sustained write speed and a real video speed class are what keep high-bitrate recording from dropping frames — V30 cards like the SanDisk Extreme PRO V30 and Lexar Silver Plus suit lighter work, while V90 SD (SanDisk Extreme PRO V90, Sony TOUGH SF-G, ProGrade Iridium) and CFexpress cards handle the heaviest codecs.

The beginner tier — SanDisk Extreme PRO V30 SD, Lexar Silver Plus microSD — covers casual stills and standard video. The enthusiast ProGrade Iridium V90 steps up to high-bitrate-capable SD speeds. The pro tier is built for demanding capture and reliability: V90 SD (SanDisk Extreme PRO, Sony TOUGH) and the high-throughput CFexpress cards — SanDisk Extreme PRO and Delkin BLACK Type B, Lexar Professional GOLD Type B, Sony TOUGH and ProGrade Cobalt Type A — for RAW bursts and high-resolution video.

Check your camera's exact slot and the bitrate of your highest recording mode first; those two facts pick the format and the minimum speed class. Capacity is the last decision. Our rankings draw on published format, speed-class, and sustained-write specs rather than hands-on benchmarking, so confirm card support in your camera's manual.