The SiMF10R5/1-6E2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 10.1 to 11 GHz, Center Frequency 10.55 GHz, Insertion Loss 2 dB, Rejection 30 dB @9.55GHz&11.45GHz, 40 dB @9.4GHz&11.6GHz, 60 dB @DC~8GHz, 55 dB @12.5~16GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF10R5/1-6E2 can be seen below.