The SiMF7/4-10D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 5 to 9 GHz, Center Frequency 7 GHz, Insertion Loss 1.5 dB, Rejection 30 dB @3.9GHz&10.1GHz, 40 dB @3GHz&10.5GHz, =60 dB @DC~1.5GHz, 40 dB @10.5~18GHz, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF7/4-10D1 can be seen below.