The SiMF9R4/R7-6E3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 9 to 9.7 GHz, Center Frequency 9.35 GHz, Insertion Loss 2 dB, Rejection 30 dB @8.55GHz&10.35GHz, 40 dB @8.4GHz &10.4GHz, 60 dB @DC~7.2GHz, 50 dB @11~13.5GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF9R4/R7-6E3 can be seen below.