TrickleStar 4 Outlet Advanced PowerTap, 2160 Joules, Coax and RJ11/45 Secondary Protection 144,000 amps / 2160 Joules Fireproof, Ceramic Surge Protection LED Status Indication (Ground, Surge Status, Control, Always On Outlet, Switched Outlets) &lt;48 dB noise filtering RJ11/45 Computer / Telephone / Fax Surge Protection F-Type Cable / DSS Surge Protection &lt;48 dB noise filtering