The SiMF9/2R6-6D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 7.7 to 10.3 GHz, Center Frequency 9 GHz, Insertion Loss 1.5 dB, Rejection 30 dB @6.5GHz&11.4GHz, 40 dB @5.8GHz&11.8GHz, 60 dB @DC~4.8GHz, 60 dB @12.4~18GHz, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF9/2R6-6D1 can be seen below.