The Angelbird Atomos Master Caddy 4K RAW (500GB) was made to interface directly with Master Caddy products for Atomos that support 4k video (HD video). Atomos’s Sumo, Shogun, and Ninja series recorders in the Inferno, Flame, Studio, and Assassin categories will support these drives. The Angelbird Atomos Master Caddy 4K RAW (500GB) includes TRIM memory management and ECC to provide stable and fast read/write speeds. The drive features up to 560 MB/s sequential read speed with 540 MB/s sustained read speed and up to 530 MB/s sequential write speed with 500 MB/s maintained write speed.