Designed for the Sony Alpha a7 and a9, the 512GB Match Pack from Angelbird bundles two weather-resistant 256GB AV Pro MK2 UHS-II SDXC memory cards together and takes advantage of the UHS-II bus to support sequential read speeds of up to 300 MB/s, sequential write speeds of up to 280 MB/s, sustained read speeds of up to 280 MB/s and sustained write speeds of 260 MB/s. This card has also been designed with the V90 Video Speed Class rating, which guarantees minimum write speeds of at least 90 MB/s, making it well-suited to capture high bit depths, frame rates, and resolutions, including Full HD, Cinema 4K+, and raw video, as well as raw and continuous burst photography. Engineered in small production runs, Match Pack are certified in-camera at all available codecs.