The AE2820L8859 from Anatech Electronics is a Low Pass RF Filter with Frequency DC to 2.82 GHz, 3 dB Cutoff Frequency 2.82 GHz, Insertion Loss 1 dB, Rejection 40 dB, Return Loss 14 dB. Tags: Module with Connector. More details for AE2820L8859 can be seen below.