The black P11VT3 SurgeArrest 11-Outlet Surge Protector from APC allows you to power up to 11 electronic devices using a single wall outlet. The power strip features powerful surge protection, protecting against surges of up to 3020 joules in strength. The power strip features a phone line splitter, which allows you to use two pieces of equipment at once, such as a modem and a phone. Protection of data lines (Ethernet, coaxial and phone lines) ensures complete protection of your equipment from surges. It is very important to protect your equipment from "back door" surges traveling through data lines, as they can be as damaging to your equipment as surges traveling over power lines. It thus provides protection that your equipment needs.