ULTRABYTES PS2 to USB Female,PS/2 Male Converter Changer Adapter for Keyboard Mouse USB Adapter  (Green)

The PS2 to USB adapter help you to connect the computer when your computer have no many usb port! No need charge and drive,portable and Plug and play When your usb port is too little,it will help you to save your usb port. The usb interface only used to connect mouse or keyboard.It can not connected with other devices. This adapter can't fit all the motherboard of different computer.So it have matching problem Only match generic mouse and keyboard Firstly close your computer .Secondly plug the adapter and connect your mouse or keyboard.Thirdly open your computer power to work. Pls plug the adapter when your computer is not work!!.