Features Allow low power optical input; Four LEDs indicate status of optical input power and power supply; Frequency bandwidth: 5-862MHz, 5-750MHz; Four output ports in forward path; Changeable tap/ splitter; Modular return-path optical transmitter; Adjustable attenuator and equalizer (0~20dB) in forward path; All of the bi-directional ports are capable of passing power into or out of the unit; High efficiency and wide range switching power supply; Spark-Arrestor at RF output port to offer surge protection. It is an economic version of SOR706 .