The SiMF6R6/1R2-7D3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 6 to 7.2 GHz, Center Frequency 6.6 GHz, Insertion Loss 2 dB, Rejection 30 dB @5.3GHz&7.9GHz, 40 dB @5.1GHz&8 GHz, 60 dB @DC~4.4GHz, 55 dB @8.5~12GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF6R6/1R2-7D3 can be seen below.