Usb 20 stick mini usb stick memory size 8 gb read speed 15 mbs write speed 15 mbs backward compatible with usb 11 memory type flash memory dimensions 25 x 17 4 x 9 mm material plastic manufacturers warranty 2 years additional information read and write speed may vary depending on the capacity compatible operating systems windows vista windows 7 windows 8 windows 8 mac os fastener with cap