The QBF-8150-9090-50 from Qualwave is a Band Pass Filter with Frequency 8.15 to 9.09 GHz, Bandwidth 940 MHz, Center Frequency 8620 MHz, Insertion Loss 0.6 dB, Upper Rejection 50 to 80 dB. Tags: Module with Connectors. More details for QBF-8150-9090-50 can be seen below.