CyberPower CPSURGE08USB-ANZ is ideal for expensive home theatre system and audio/video devices protections. The MOV technology guards the surge suppressor and connected electronics such as phone, network, and communication equipment against surge/spikes and other power abnormalities. EMI/RFI noise filtering helps reduce frequency interference. The one-in/one-out gold plated coaxial connector provides protection for cable/satellite TV receivers and broadband modems.