Designed for high bit depths, frame rates, and resolutions, including Full HD, 4K+ raw, and 3D video, as well as raw and continuous burst photography in DSLR and drone systems, the AV Pro MK2 UHS-II SDXC Memory Card from Angelbird has a storage capacity of 256GB. It takes advantage of the UHS-II bus to support maximum read speeds of 280 MB/s and maximum write speeds of 160 MB/s, as well as sustained read speeds of 260 MB/s and sustained write speeds of 140 MB/s. This card has a V60 Video Speed Class rating, which guarantees minimum write speeds of 60 MB/s.

UHS-II media achieves its speed through an extra row of pins and while this card can be used with cameras that are UHS-II / V60 compatible, it may also be used in devices that do not support UHS-II / V60. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-II and V30, which supports minimum write speeds of 30 MB/s, or UHS-I and U3, which also supports minimum write speeds of 30 MB/s. If your device does not support U3, this card is compatible with the U1 and Class 10 standards, each of which guarantees minimum write speeds of 10 MB/s.