Hot cute model USB 2.0 Enough Memory Stick Flash pen Drive Will ship out by USPS, about 11-15 working days to reach your hand. Features:Storage Capacity: 4GB,8GB,16GB Support USB version 2.0 and 1.0 Write protect switch Hot Plug & Play Durable solid-state storage No external power is required 4.5V ~ 5.5V from USB port Support Windows 7, 2000 and XP without device drive Support solution for Linux kernel version 2.4 or later version Driveless for OS 9X or up Compatible with USB 1.1/2.0 Operating Temp: -10 to +55Deg.C Storage Temp: -20 to +55Deg.C More Than 10 Years Data Retention Package: 1 x USB 2.0 Enough Memory Stick Flash Pen Drive