The QBF-33500-36500-50 from Qualwave is a Band Pass Filter with Frequency 33.5 to 36.5 GHz, Bandwidth 3000 MHz, Center Frequency 35000 MHz, Insertion Loss 3 dB, Upper Rejection 50 dB @39.5 to 50 GHz. Tags: Module with Connectors. More details for QBF-33500-36500-50 can be seen below.