D-Link DKVM-410H 

 4-port, KVM, with HDMI, and USB Ports, Switch,

D-Link DKVM-410H:

 4-Port KVM Switch allows you to control up to four computers with one HDMI and USB port with one monitor, keyboard and mouse.

The DKVM-410H does not require any driver to be installed :

 can operate without an external power adapter by turning on the USB port on your computer (an adapter 1 can be used when connecting an external device such as a USB disk To DKVM-410H USB Type A port.

You do not need to shut down your computer before installing hardware:

as this KVM switch can be hot plugged in The DKVM-410H allows you to switch between computers quickly and easily using the front panel buttons, keyboard hotspots or desktop consoles.

DKVM-410H:

supports auto scan mode that automatically switches to the next PC after the test period.