The QBF-8250-9250-50 from Qualwave is a Band Pass Filter with Frequency 8.25 to 9.25 GHz, Bandwidth 1000 MHz, Center Frequency 8750 MHz, Insertion Loss 2.5 dB, Upper Rejection 50 dB @9.75 to 18 GHz. Tags: Module with Connectors. More details for QBF-8250-9250-50 can be seen below.