The SiMF6R7/2R1-9D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 5.65 to 7.75 GHz, Center Frequency 6.7 GHz, Insertion Loss 2 dB, Rejection 30 dB @5.05GHz&8.4GHz, =40 dB @4.8GHz&8.5GHz, 60 dB @DC~4.3GHz, 60 dB @10~18GHz, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF6R7/2R1-9D2 can be seen below.