The GC ELECTRONICS 64-694 surge protector provides robust protection for home theater systems. With 6900 Joules of energy absorption, it safeguards devices from power surges and spikes. The unit includes color-coded line cord labels for easy identification and full accessory protection for a wide range of devices. It's designed to protect digital equipment, coaxial cables, telephones, fax machines, modems, satellite systems, and antennas.