The 310-020050-XXX Series from Spectrum Control is a Integrated Microwave Assembly with Attenuation 55 to 60 dB, Current 50 to 75 mA (Supply), Insertion Loss 5 to 6.5 dB, Isolation 50 dB, Supply Voltage 4.5 to 5.5 VDC. Tags: Module with connector. More details for 310-020050-XXX Series can be seen below.