The AM2400B1259 from Anatech Electronics is a Band Pass Filter with Frequency 2.364 to 2.436 GHz, Bandwidth 72 MHz, Center Frequency 2400 MHz, Insertion Loss 2 dB, Rejection 60 to 70 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for AM2400B1259 can be seen below.