The KVM AS-41HA HDMI is an inexpensive 4-port KVM switch with automatic audio switch for the desktop area.the connection of the KVM is done via USB (keyboard / mouse), 8x 3.5mm jack (audio Mic/Line) and HDMI (HDMI monitor) via the four supplied connection cables, to the computers.via the additional USB port in the front can also external data carriers, such as USB sticks, connect and manage.