Interface Hi-Speed USB (USB2.0)*1 Port type Type A USB port Power supply USB bus power (no external power supply) Transfer speed (Max) Hi-Speed USB (USB2.0)*1 Compatible devices ? Computers with type A USB port and Windows OS ? Macintosh with type A USB port Compatible OSs Windows Vista Home Basic/Home Premium / Business / Enterprise / Ultimate / Starter, Windows XP Professional/Home Edition,Windows 2000 Professional Mac OS 9.0x, 9.1x, 9.2x Mac OS 10.1-10.5.x (Mac OS 10.0x is not supported Windows ReadyBoost Compatible Virtual Expander (Sonys unique file compression software) Pre-installed Software (Virtual Expander) Compatible OS Windows Vista(32Bit)*2, Windows XP(SP1 or later), Windows 2000(SP3 or later) Capacity*3 1GB, 2GB, 4GB, 8GB, 16GB Operating temperature range 0 to 35°C ( 32 to 95°F ) Operating humidity range 10 to 90% (with no condensation) Storage temperature range -20 to 60°C (-4 to 140°F) Storage humidity range 10 to 90% (with no condensation) External Dimensions Approximately 17.4 x 8.4 x 62mm Weight Approximately 9g Accessories Operating Instructions, Warranty Card