The EDA4H2700P420E70 from ECHO Microwave is a Band Pass Filter with Frequency 2.49 to 2.91 GHz, Insertion Loss 2.5 dB, Rejection 70 dB @ 2000MHz, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H2700P420E70 can be seen below.