The EDA4I2700P400G15 from ECHO Microwave is a Band Pass Filter with Frequency 2.5 to 2.9 GHz, Insertion Loss 3.5 dB, Rejection 15 to 70 dB, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4I2700P400G15 can be seen below.