The Sandberg USB 2.0 Hub & PS/2 Link is a hub with three USB 2.0 ports and two PS/2 ports for connecting a mouse and keyboard. If your computer has no PS/2 ports, you can save yourself the expense of a new keyboard and mouse by connecting your existing keyboard and mouse to this hub. You can even connect three USB devices at the same time, and all by utilising only a single USB port on your computer. The enclosed power supply can be used if required. If you connect a mouse and keyboard plus USB devices with low power consumption, the power supply is unnecessary. But if you connect USB devices with greater power consumption, the power supply will provide full power to all the ports. The Sandberg USB 2.0 Hub & PS/2 Link is easy to install as it requires no drivers.