The WBCJV4-2485-2530-2540-2585-40-2 from Wainwright Instruments is a Band Pass Filter with Frequency 2.53 to 2.54 GHz, Bandwidth 10 MHz, Center Frequency 2.535 GHz, Insertion Loss 1.75 to 2 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCJV4-2485-2530-2540-2585-40-2 can be seen below.