The AE2140WN2237 from Anatech Electronics is a Band Stop Filter with Stopband Frequency 2.11 to 2.17 GHz, Insertion Loss 2 dB, Rejection 50 dB, Power 50 W, VSWR 1.50:1. Tags: Module with Connectors, Notch Filter. More details for AE2140WN2237 can be seen below.