Usb 20 stick memory size 64 gb backward compatible with usb 11 memory type flash memory dimensions 63 6 x 21 2 x 10 6 mm material plastic series transcend jetflash certificatessafety fcc bsmi manufacturers warranty 2 years weight 49 g additional information read and write speed may vary depending on the capacity compatible operating systems windows 2000 windows xp windows vista windows 7 windows 8 windows 8 mac os 9 linux 24 fastener retractable