The 16GB SanDisk Extreme HD Video SDHC meory card is the perfect balance of speed and reliability for HD video and faster shot-to-shot performance. Delivering Class 6 video performance with up to 20MB/sec read/write speeds*, you'll be ready to capture HD video on the latest DSLRs and digital compact cameras that have high-definition video recording capabilities.FeaturesOne card for all of your high-def video and high performance photography needsExperience faster shot-to-shot performance for your advanced cameraCapture HD video on Class 6 video-enabled DSLRs, camcorders, and compact camerasStore up to 4 hours of H.264 high-def video at 9Mbps on an 16GB card**Transfer photos and video to your PC fast and easy with read speeds up to 20MB/sec** Up to 20 MB/sec read and write speed. Based on SanDisk internal testing; performance may vary depending upon host device. 1 megabyte (MB) = 1 million bytes.** Approximations: results will vary based on file size, resolution, compression, bit rate, content, host device, pre-loaded files and other factors.