... 1. Specification: usb 2.0 or usb 3.0 usb flash drive,usb,flash drive,pen drive,usb flash memory,usb flash,usb stick,usb drive,usb flash disk,pendrive,thumb drive,thumbdrive.usb disk,usb flash memory stick,1gb,2gb ... : If satisfied please tell your friends otherwise please let us know.Any opinion of yours are warmly welcome. Compatibility ...