Usb 20 stick memory size 8 gb read speed 18 mbs write speed 8 mbs backward compatible with usb 11 memory type flash memory dimensions 29 x 27 x 4 mm manufacturers warranty 5 years additional information read and write speed may vary depending on the capacity compatible operating systems linux mac os mac os 9 mac os 86 windows 2000 windows 7 windows me windows vista windows xp fastener with cap