The WRCJV8-2550-2570-2620-2640-30-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.57 to 2.62 GHz, Bandwidth 50 MHz, Insertion Loss 0.75 to 1.25 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCJV8-2550-2570-2620-2640-30-2 can be seen below.