Leviton 5500/5505 devices are designed for mounting on 19-inch racks where transient voltage surge suppression is desired for rack-mounted electronic equipment. Each device offers a total of 12 protected outlets (10 in back and 2 in front) to provide easy plugin convenience for all mounted equipment. Advanced circuit design offers EXTREMEly tight clamping levels and exceptional noise attenuation. Each unit is provided with power, protection, and outlet polarity/ground status LED diagnostics, a resettable overload circuit breaker and a 12-foot power supply cord.