Usb 30 stick memory size 64 gb backward compatible with usb 20 memory type flash memory material metal series silicon power jewel special features shockproof waterproof dustproof manufacturers warranty 10 years weight 31 g additional information read and write speed may vary depending on the capacity compatible operating systems windows vista windows 7 windows 8 windows 10 mac os x 103 linux 26 fastener without cap colour silver