The CB2645/110MK-B3 from G-WAY Microwave is a Band Pass Filter with Frequency 2590 to 2700 MHz, Bandwidth 110 MHz, Center Frequency 2645 MHz, Insertion Loss 0.2 to 0.3 dB, Rejection 45 dB. Tags: Module with Connectors, Cavity Filter. More details for CB2645/110MK-B3 can be seen below.