This BNC switch by Delock is a manually bidirectional switch for connecting different devices with BNC port. This switch offers two different applications.\n\n- You can connect two computers with BNC port to one monitor, TV with BNC input port. By using the button you can select which device should display the signal.\n- You can connect one device with BNC port to two displays and select the monitor which should display the signal by using the button. (Simultaneous output to multiple screens is not possible)