The SanDisk Extreme PRO CompactFlash Memory Card is a high-capacity card that supports VPG-65. Ensuring smooth 4K video recording as well as Full HD1, professionals who need high video-capture endurance will find the performance they need in this memory card. Experience faster shot-to-shot performance and increased workflow efficiency whilst never missing a scene or shot as it resists extreme temperatures and weather conditions. Benefits 256GB storage capacity Fast read speeds of up to 160MB/s Fast write speeds of up to 140MB/s 4K UHD Video Ready1 Designed to withstand extreme environments Video Speed Class VPG-65 Product compatibility information available SanDisk warranty What\'s in the box SanDisk Extreme PRO CompactFlash Memory Card, 160 MB/s, 256GB Compatibility EOS-1D X Mark II EOS 5DS R EOS 5DS EOS 5D Mark IV EOS 7D Mark II