The QBT-18000-40000 from Qualwave is a Bias Tee with Frequency 18 to 40 GHz, Max. Voltage 10 V, Max Current 0.3 A, Insertion Loss 2 dB, Operating Temperature -40 to 70 Degree C. Tags: Module with Connector. More details for QBT-18000-40000 can be seen below.