The AB5350B731 from Anatech Electronics is a Band Pass Filter with Frequency 5.1 to 5.6 GHz, Bandwidth 500 MHz, Center Frequency 5350 MHz, Insertion Loss 2 dB, Lower Rejection 70 dB @ 5735-5835 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB5350B731 can be seen below.