The AM2441S355 from Anatech Electronics is a Band Pass Filter with Frequency 2.4 to 2.48 GHz, Bandwidth 83.5 MHz, Center Frequency 2441.8 MHz, Insertion Loss 2.5 to 5 dB, Upper Rejection 40 dB 2700-3100 MHz. Tags: Surface Mount, RF SAW Filter. More details for AM2441S355 can be seen below.