The QBF-9000-14000-40 from Qualwave is a Band Pass Filter with Frequency 9 to 14 GHz, Bandwidth 5000 MHz, Center Frequency 11500 MHz, Insertion Loss 1.5 dB, Upper Rejection 40 dB @15 to 23 GHz. Tags: Module with Connectors. More details for QBF-9000-14000-40 can be seen below.