The QBF-34000-36000-50 from Qualwave is a Band Pass Filter with Frequency 34 to 36 GHz, Bandwidth 2000 MHz, Center Frequency 35000 MHz, Insertion Loss 3 dB, Upper Rejection 50 dB @39 to 50 GHz. Tags: Module with Connectors. More details for QBF-34000-36000-50 can be seen below.