The Tripp Lite Protect It 3-Outlet Surge Protector with 2 USB Ports and Desk Clamp features 3 NEMA 5-15R outlets and a surge suppression rating of 510 Joules to protect your components against surges, spikes and EMI/RFI line noise that can damage sensitive electronics and destroy data. Plus, 2 USB ports with 3.1 Amp of combined power can charge your mobile devices. It is recommended for home, office, workstations, dorms and hotel rooms. It mounts permanently to a clamp that attaches to most desks, tablets and flat surfaces. The 10 ft. power cord fits through the back of the clamp to reduce cable clutter. A top storage shelf holds smartphones and other small devices while they're charging. Color: Black.