7-outlet Surge Protector with 12 ft Power Cord with Telephone Protection. The Advanced Surge Protector is perfect for the home office or professional workstation. Voltage fluctuations surges and spikes can damage your computer and peripherals and degrade overall performance. Belkin's Advanced Surge Protector safeguards your personal computer printer hard drives modems and other hard-to-replace equipment against damage data loss file corruption and system crashes.