Product Details  usb flash disk usb flash memory usb disk  usb flash disk usb flash memory usb disk 1) USB 1.1/2. 02) Storage capacities: ,256MB, 512MB, 1GB 2GB.4GB,8GB,16GB,32GB 3) Intelligent sub-area or all space encryption 4) Multi-partition available (max. 8 partition supported)  5) Bootable  6) Hot plug-and-play 7) Hardware compatibility:  a) IBM PC  b) IBM compatible PC notebook   c) Macintosh with USB port 8) Operating system: Windows 98, SE, XP, ME, 2000, Linux 2.4 or later, MAC OS9 or later 9) Only in Windows98 requires driver installation 10) Write speed: 750KB/s (depending on computer configuration); read speed: 1,000KB/s (depending on computer configuration) 11) Indicator: a) Busy: 8Hz b) Idle: always on 10 years 13) Storage media: flash memory 14) Shockproof and moisture-proof 15) Operation temperature: -20 ~ +70oC 16) Storage temperature: -50 ~ +85oC  17) Relative humidity under operation: 10 - 90% 18) Relative humidity under storage: 5 - 85%