The SiMF10/4-9D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 8 to 12 GHz, Center Frequency 10 GHz, Insertion Loss 1 dB, Rejection 30 dB @7.23GHz &13.16GHz, 40 dB @6.94GHz&13.5GHz, 60 dB @DC-6.18GHz, 60 dB @14.2-18.3GHz, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF10/4-9D1 can be seen below.