Any of the four (4) HDBT output ports may be switched, via the 500480 4K60 Multimedia 16×16 Matrix Switch, to any of the mounted input ports (up to 16 modular input ports may be mounted – 4 modular cards of 4 ports each). HDBT output ports may be switched to HDMI or HDBT input ports. RS232 and IR commands may be send to the 500480 4K60 Multimedia 16×16 Matrix Switch and transmitted over the HDBT port to MuxLab HDBT Extenders supporting RS232 and/or IR ports in order to control end devices.