The SiMF8R75/1R5-8D3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 8.1 to 9.6 GHz, Center Frequency 8.75 GHz, Insertion Loss 2.5 dB, Rejection 30 dB @7.5GHz&10.3GHz, 40 dB @7.3GHz&10.5GHz, 60 dB @DC~5GHz, 60 dB @12~17GHz, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF8R75/1R5-8D3 can be seen below.