SMARTSOCKETS PREM STRIP 6RCPTL 520J 25K CLR Surge protection is a must for the knowledgeable electronics user. And the most knowledgeable use this strip to protect their valuable equipment and data. PRODUCT FEATURES: Protect computers and modems from damaging power surges and spikes; Six color-coded rings with matching cord labels provide easy cord management; EMI/RFI noise filtration, right-angle plug, and recessed on/off switch; 520 Joules, 330 clamping voltage, fax/modem protection, 8-foot power cord.