Detailed : 1) USB 1.1 &ú+ 2.0 Certified 2) Capacities: 128MB, 256MB, 512MB, 1GB, 2GBú¼4GB. 3) High speed, at least 10 years of data retention. 4) 2 Years Warranty 5) Plug and Play, No external power supply required, USB bus-poweredú+ 6) Reading speed: 900KB/Sú+ 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) customized design: color, package 11) CE/FCC/ROHS Approval Special Points: Slim figure, name card size Perfect business gift