The WBCJV4-2545-2590-2600-2645-40-4 from Wainwright Instruments is a Band Pass Filter with Frequency 2.59 to 2.6 GHz, Bandwidth 10 MHz, Center Frequency 2.595 GHz, Insertion Loss 1.75 to 2 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCJV4-2545-2590-2600-2645-40-4 can be seen below.