... :preload available 2.auto-run usb 3.memory chip:samsung,hynix,micron rubber key usb memory giftSpecifications:1.Supports Usb Full-speed ... /4/8/16/32/64gbCapacities:64MB,128MB,256MB,512MB,1GB,2GB,4GB,8GB,16GB,32GBFeatures:Capless switch-style designTransfer Rate:Hi ... can jump out when the usb was plug into the computer