Fortech&reg; Grizzly USB 3.0 Flash Drives USB Memory Stick,Genuine Leather collapsible keychain USB Pen Drives,an awesome computer accessories Super Speed USB 3.0 interface, hot Plug and play compatible with USB 2.0 on window PC and Mac systems; Up to 3 times faster than USB 2.0, (up to 45MB/s read and 20MB/s write); First Class Leather with shining Metal; Available in multiple Colors and various large capacity(16GB, 32GB, 64GB. Black,white,brown,Red,Orange,Blue); The Grizzly USB could be attached with your keys; 3.4 x 1.3 x 0.6 inches ; 1.1 ounces; Brand New and with Retail Package; Super quality NAND and brand IC controller; CE, Rohs, FCC Complied;