The WRCT10-2645-2650-2660-2665-40-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.65 to 2.66 GHz, Bandwidth 10 MHz, Insertion Loss 1.25 to 1.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-2645-2650-2660-2665-40-3 can be seen below.