The Cabletronix CTHDA-1P is a wall mounted 1GHz multi-media drop amplifier for use in CATV systems that require two way multi-media networking. These are low noise amplifiers with high isolation between ports, 6KV surge protection on all ports, electrostatic discharge protection, and zinc die cast housing to prevent RFI. The CTHDA amplifiers can be remotely powered over coax, line powered through an RF port, or externally powered through a "POWER-IN" port.