Usb 30 stick memory size 64 gb read speed 50 mbs write speed 20 mbs backward compatible with usb 20 memory type flash memory dimensions 56 7 x 19 8 x 6 8 mm series mushkin ventura manufacturers warranty 3 years additional information read and write speed may vary depending on the capacity compatible operating systems linux 26 mac os 10 windows 7 windows vista windows xp fastener with cap