Compucessory Slim 10-Outlet Surge Protector - 10 x AC Power - 3420 J - Coaxial Cable Line 10-outlet surge protector with a 6' power cord is rated to withstand a power surge of up to 3, 420 joules. 2.1A USB chargers provide direct power to your compatible gadgets and devices without requiring a separate adapter. Two pairs of coaxial connectors allow you to protect your cable devices from sudden surges in power. Surge protector is perfect for entertainment systems, office machines, computers and more.