The AB2441B780 from Anatech Electronics is a Band Pass Filter with Frequency 2.4 to 2.48 GHz, Bandwidth 83 MHz, Center Frequency 2441 MHz, Insertion Loss 1 dB, Upper Rejection 40 dB @ 2583 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB2441B780 can be seen below.