The VP-14 is a port extender for RS-232 data signals. It sends data from any port to the other three. Control – DIP-switches for straight (flat) or crossed connection. Control – DIP_switches for straight (flat) or crossed connection.Size – Compact TOOLS – 3 units can be rack mounted side-by-side in a 1U rack space with the optional RK-3T rack adapter. – compatible with RK-3T 19-inch rack adapter for mounting 3 Kramer TOOLSª into a 1U rack space.