The EDA4E2700P280D30 from ECHO Microwave is a Band Pass Filter with Frequency 2.56 to 2.84 GHz, Insertion Loss 2 dB, Rejection 30 to 40 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E2700P280D30 can be seen below.