The Tripp Lite(R) 6-Outlet Surge Protector with Clamps and USB Charging offers economical AC surge suppression for protection of workstations, desktop PCs, telecom systems and other sensitive electronics. Built-in AC surge suppression shields connected equipment from damage and performance problems due to transient surges. USB charging ports offer fast charging for smartphones, tablets, MP3 players and other portable devices. The TLP606DMUSB offers 6 total outlets, a 6ft cord, 2 USB charging ports and a diagnostic LED to warn of suppressor damage. AC suppression rated at 2,100 Joules shields equipment from surges and line noise. This matte black surge suppressor has clamps that attach to the side of the desk, workbench or table. Two knobs easily clamp to desk for better accessibility to plugs(R)4 standard and 2 adapter-spaced plugs.