The HX5100-4500M from Holzworth Instrumentation is a Analog Phase Shifter with Frequency 3 to 6 GHz, Phase Shift 180 Degree, Control Voltage 0 to 10 V, Power 6 to 10 dBm, Power W 0.003 to 0.01 W. Tags: Module with Connectors. More details for HX5100-4500M can be seen below.