The SiMS14R2/R1-4E4 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 14.1 to 14.25 GHz, Center Frequency 14.17 GHz, Insertion Loss 4 dB, Rejection 30 dB @13.55GHz&14.8GHz, 40 dB @13.4GHz&15GHz, 50 dB @12.5GHz&15.1GHz, 60 dB @1.8~11GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS14R2/R1-4E4 can be seen below.