The Lexar 16GB CompactFlash Memory Card Professional 1000x UDMA - 2-Pack is a two-pack of high-performance CompactFlash (CF) memory cards. Each card harnesses UDMA 7 technology to deliver a superb 1000x speed rating, enabling maximum sustained read speeds of 150MB/s, with write speeds of up to 95MB/s. While UDMA was designed to be backwards compatible with earlier versions, it's recommended that you use UDMA 7 CF devices for best results. Capture and save high-quality still photos and full HD 1080p and 3D video with your DSLR camera. The CF card supports VPG-20 for professional-quality, full HD movie capture at up to 20MB/s. When paired with a UDMA 7 enabled reader (not included), the card offers super-fast file transfer to computer, drastically accelerating your workflow. Image Rescue 4 software, available via free download, lets you recover lost or accidentally deleted photo and video files. Enjoy free professional tech support. The card is backed by a limited lifetime warranty.