The RWCP3500B200M03 from RF MORECOM COREA is a Waveguide Filter with Frequency 3.4 to 3.6 GHz, Input Power 40 dBm, Insertion Loss 1 dB, Operating Temperature -40 to 85 Degree C, Rejection 20 to 60 dBc. Tags: Band Pass. More details for RWCP3500B200M03 can be seen below.