Usb 30 stick memory size 8 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