128gb usb flash drive metal case pendrive 64gb shock-resistant memory stick usb 3.0 disk u20

features: 1. convenient to take, easy to use. 2. using domestic udp technology. safe. waterproof and shockproof. take out and dry immediately after dropping into the water. 3. metal case. 4. small size, very portable. 5. usb 3.0 port design.6.instantly expand device capacity. plug and play. easily solve the memory shortage problem. 7.effectively save file transfer time and greatly increase work efficiency. 8.supports external storage extensions, for all computers and most tv, car, and loudspeaker box..syi