The SiMF7/2R1-7D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 6 to 8 GHz, Center Frequency 7 GHz, Insertion Loss 1.8 dB, Rejection 30 dB @5.3GHz&8.7GHz, 40 dB @5.1GHz&8.9GHz, 60 dB @DC~4.5GHz, 55 dB @10~14GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF7/2R1-7D2 can be seen below.