The WBCJV6-2450-2500-2570-2620-40-1 from Wainwright Instruments is a Band Pass Filter with Frequency 2.5 to 2.57 GHz, Bandwidth 70 MHz, Center Frequency 2.535 GHz, Insertion Loss 1.25 to 1.75 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCJV6-2450-2500-2570-2620-40-1 can be seen below.