The AE2400B9891 from Anatech Electronics is a Band Pass Filter with Frequency 2.3 to 2.5 GHz, Bandwidth 200 MHz, Center Frequency 2400 MHz, Insertion Loss 1 dB, Upper Rejection 50 dB 2550 to 6000 MHz. Tags: Module with Connectors, Cavity Filter. More details for AE2400B9891 can be seen below.