Tripp Lite's TLP604TEL Surge Suppressor offers economical AC and phone line surge suppression for full 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. Set of RJ11 telephone line suppression jacks protect dialup and DSL modem lines, fax machines, cordless phones and more. TLP604TEL offers 6 total outlets, 4 foot cord and diagnostic LED to warn of suppressor damage. AC suppression rated at 790 joules shields equipment from surges and line noise. Attractive white suppressor housing with keyhole mounting tabs and 1 designated transformer plug outlet offers convenient protection of desktop computer equipment and accessories.