Feature: 1) USB 1.1 & 2.0 Certified 2) Capacities: 128MB, 256MB, 512MB, 1GB, 2GB，4GB. 3) High speed, at least 10 years of data retention. 4) 3 Year Warranty 5) Plug and Play, No external power supply required, USB bus-powered; 6) Reading speed: 900KB/S; Writing speed: 700KB/S (computer configuration dependant) 7) Shock Resistance: 1000G 8) Supports multi-partition and password access 9) Accessories: USB cable, English user manual, installation CD, lanyard (Some are optional) 10) Bulk / color retail box / gift box / tin box / customized design. 11) CE/FCC/ROHS Approval