Hardware Requrements: IBM PC,Compatiable Desk top/ NoteBook or Mac computer Host Interface: USB port,USB specification 1.1 compliant Operating System: Windows 98/SE/ME/2000/XP,MAC 9.0 or above Driving Program: No driver installation require(Except on Windows 98/SE) Capacity: 8MB/16MB/32MB/64MB/128MB/256MB/512MB/1G Power Supply: No external power supply,USB power Supply(4.5V to 5.5V) Data Retention: Over 10 years Boot-Up: Support BIOS booting as USB ZIP &USB hard disk Security: Support user password function Reading/Write Speed: 900/600KB/S (computer configuration dependant) Operating Temperature: -40癈 - +70?C Size: 70mmx20mmx11mm (general packing) Weight: 15g(general packing