The DF2RF2642L-27M from Innertron is a Band Pass Filter with Frequency 2.63 to 2.66 GHz, Bandwidth 27 MHz, Center Frequency 2642.5 MHz, Insertion Loss 2 dB, Rejection 35 to 40 dB@1980 to 3450 MHz. Tags: Surface Mount. More details for DF2RF2642L-27M can be seen below.