The Best Choice for High-end Digital Devices! To save every precious, valuable and romantic moment, you may purchase high resolution digital camera, digital camcorder, or other high-end devices. However, normal Secure Digital Cards (SD Cards) on the market today may not let you capture these moments because of slow read/write speed. Slow read/write speed may cause lag time between shots and result in missing the opportunity to record some of your finest memories. This A-DATA Turbo SDHC Memory Card (Class 6), rated a Class 6 performance card which means the card has a guaranteed write speed of at least 6MB/s, will reduce time between shots.