Sandisk CZ7 4GB USB Flash Drive Specifications Capacities : 1GB/2GB/4GB/8GB/16GB/32GB Color: Sliver Dimension(L*W*H): 7.14mm*19.05mm*57.94 mm USB 2.0 Weight：10g Operating System  : Windows 7/Vista/XP/2000/ME/98 and Mac® OS 9.0/Linux™ Kernel 2.4 and above Drivers  : Required only for Windows 98/95 (Download Available) Feature: Password Traveler Read Speed：20MB/s Write Speed：9MB/s Operating temperature: 0 ℃ – 60 ℃ Humidity: 10% -90% [...]