Usb 20 stick colour blue backwards compatible to usb 11 memory size 64 gb read speed 25 mbs backward compatible with usb 11 memory type flash memory dimensions 17 x 58 x 7 mm material metal series hama flashpen valore series manufacturers warranty 10 years additional information read and write speed may vary depending on the capacity compatible operating systems mac os 9 mac os 10 windows 2000 windows 7 windows me windows vista windows xp fastener