I bought this USB switch to allow for sharing a wireless keyboard with two computers. It came with cables and was easy to install. Both computers recognized it and shared the wireless keyboard/mouse. However the USB switch would not get recognized during bootloader menu(Dual boot, Win7 and Ubuntu), so couldn't select which OS to boot into. Then the unit stop working as the buttons are very cheaply made, buttons felt like they broke inside switch. Replaced it with a kensington sharecentral 2 on another site for 1/3 the price, and is quality product(plus works in bootloader menu).