USB flash drives. Pen Usb flash memory. 1) Adopt super stable level A flash chip 2) USB main interface speed rate can reach 12Mbps 3) USB1.1 / 2.0 4) No outer power supply required 5) No driver required in Win Me/Win2000/WinXP system 6) Auto-guide system operation, same as BIOS provided with hardware encryption and document encryption 7) Capacity: 64MB / 128MB / 256MB / 512MB / 1GB Outer packing: 100pcs/packing Packing dimensions: 50 x 24 x 36.5cm N.W.: 12.1kg G.W.: 13.1kg Pen USB flash memory, , Pen Pen USB flash stick USB flash drives, Pen USB flash memory.