The TP-580R is a 4K UHD, twisted pair receiver for HDMI, bidirectional RS-232 and IR signals. It supports resolutions up to 4K@60 UHD (4:2:0). The TP-580T converts HDMI, RS-232, and IR signals into a twisted pair signal that it transmits to a TP-580R receiver. The TP-580R converts the twisted pair signal back into HDMI, bidirectional RS-232 and IR signals.