Usb 20 stick memory size 32 gb read speed 20 mbs write speed 5 mbs backward compatible with usb 11 memory type flash memory materials metal plastic special feature shockproof manufacturers warranty lifelong weight 15 g additional information read and write speed may vary depending on the capacity compatible operating systems windows 7 windows vista windows xp windows 8 windows 10 mac os x 105 linux 26 fastener turn lever