The UNMP-R5075-33+ from Mini Circuits is a Impedance Matching Pad with Frequency DC to 3 GHz, Input Power 2 W, Accuracy 0.15 to 0.4 dB, Attenuation 5.7 dB, Operating Temperature -45 to 100 Degree C. Tags: Connectorized, 50 to 75 Ohms. More details for UNMP-R5075-33+ can be seen below.