Hardware Requirements: IBM compatible desktop and notebook PC or Mac with USB port. Operating system: Windows98/ME/2000/XP, Mac OS 9.2&higher/Linux2.4 above Etc. Capacity: *32MB *64MB *128MB *256MB *512MB *1GB *2GB Mainframe Interface: Universal serial bus 2.0 (backward compatible USB1.1) Data retention time: At least 10years. Write Protection: NO With write protection switch. Read/Write Transfer:8MB/6MB/second (depend on computer system speed).