The SiMF10/4R4-10D3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 7.8 to 12.2 GHz, Center Frequency 10 GHz, Insertion Loss 1.5 dB, Rejection 30 dB @7GHz&13.6GHz, 40 dB @6.8GHz&14GHz, 60 dB @DC-6GHz, 60 dB @15-22GHz, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF10/4R4-10D3 can be seen below.