Features: 256GB Storage Capacity per Card, PCIe 3.0 x2 Bus, Max Read Speed: 1700 MB/s, Max Write Speed: 1400 MB/s, Records 6K, 4K, Full HD, and 3D Video, Records Raw Photos and Image Bursts, Impact, Bend, and Shock Resistant, ESD, UV, X-Ray & Temperature Resistant, Backward Compatible with XQD, Supports CFexpress 2.0 and 1.0