Voyager HDMI over Fiber 4 Port Receiver and Scaler with Audio, IR and RS-232.
This receiver can scale and convert to HDMI any video signal sent by other Voyager transmitters.
This transmitter has 4 fiber optic ports, one is used to receive the signal from the transmitter and the other 3 can be used with the optional fiber optic modules to daisy chain the signal to other receivers.
Note, the picture shows the transmitter; the receiver has HDMI output to the display or TV instead of input from the video source.
This product is also known as "VG-RX4-MM-SRX-ISA-HDMI" 4 port receiver.