There are many way to secure your data inside the USB drive, but the USB dial lock has unique design for an USB data security system. The USB dial lock can also be used to lock other gadgets that have a USB interface, like a mouse, keyboard, memory card reader, etc. As long as the jack connector measures 4mm of thickness and 11.5mm in length, it is all good. The initial combination for unlocking is 0-0-0 and you can change the combination by changing the number while pushing the reset button using a pin. You can only change the combination when USB device is not connected to the lock. Insert USB male jack with the indented metal side up and change the numbers to lock the USB device.