The ADBF 9000/2100-A from ADMOTECH is a Band Pass Filter with Frequency 7.95 to 10.05 GHz, Bandwidth 2.1 GHz, Center Frequency 9000 MHz, Insertion Loss 1 dB, Rejection 25 dBc. Tags: Module with Connectors, Cavity Filter. More details for ADBF 9000/2100-A can be seen below.