The ERZ-BPF-0530-0610-2.5 from ERZIA is a Band Pass Filter with Frequency 5.3 to 6.1 GHz, Insertion Loss 2 to 2.5 dB, Rejection 30 dB @5.11 GHz & 6.4 GHz, 60 dB@5 GHz & 6.67 GHz, Power 10 W, Return Loss 13.2 to 15 dB. Tags: Module with Connectors, Suspended Substrate Filter. More details for ERZ-BPF-0530-0610-2.5 can be seen below.