The QBF-10425-10575-30 from Qualwave is a Band Pass Filter with Frequency 10.425 to 10.575 GHz, Bandwidth 150 MHz, Center Frequency 10500 MHz, Insertion Loss 1 dB, Upper Rejection 30 dB @10.8 GHz. Tags: Module with Connectors. More details for QBF-10425-10575-30 can be seen below.