size: 55*19*10mm; Material:ABS+Metals COLORS: Blue, Grey, Silver, Transparent Blue, Green, Purple Feature: 1) USB Flash Disk; Storage media: flash memory. 2) Compatible USB 2.0 specification, Compliant with USB 1.1/2.0. 3) High speed, at least 10 years of data retention. 4) Capacity:64MB to 2G. 5) Easy OEM. 6) USB1.1 Reading speed: 900KB/S; Writing speed: 700KB/S (computer configuration dependant) 7) USB2.0 Reading speed: 22MB/S; Writing speed: 20MB/S (computer configuration dependant) 8) Support multi-partition and password access; 9) Support BIOS booting as USB-ZIP or USB-HDD; 10) Support administrator or non-administrator model on Win2000/XP. 11) Hot plug-and-play. USB bus-powered