The QP-BITEE-0040-04 from QP Microwave is a Bias Tee with Frequency 500 MHz to 40 GHz, Max. Voltage 50 V, Max Current 1000 mA, Insertion Loss 1.5 to 1.8 dB, Operating Temperature -40 to 85 Degree C. Tags: Module with Connector. More details for QP-BITEE-0040-04 can be seen below.