Protects home-office electronics from dangerous power surges and spikes Ideal for laptops, desktops, printers, routers, and other home-office devices Four protected AC outlets 2-meter power cord keeps surge protection strip out of the way Damage-resistant housing protects circuits from fire, impact, and rust Rated to withstand a power surge of up to 525 joules Three-line AC protection against surges between hot, neutral, and ground lines Voltage fluctuations, surges and spikes can damage and degrade the overall performance of your computer and peripherals.The Belkin Surge Protectors, BSV400AF2M offers extra outlets, power extension from wall outlets and protects valuable electronics from damaging power surges. This power 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.- Four (4) Outlet Surge Strip.- 525 Joules of urge protection to protect your laptop, desk