The SiMF34R5/2R4-7W2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 33.3 to 35.7 GHz, Center Frequency 34.5 GHz, Insertion Loss 2 dB, Rejection 30 dB @32GHz&36.9GHz, 45 dB @DC~29GHz, 40 dB @40~50GHz, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF34R5/2R4-7W2 can be seen below.