The AB5900B776 from Anatech Electronics is a Band Pass Filter with Frequency 5.9 to 5.91 GHz, Bandwidth 10 MHz, Center Frequency 5900 MHz, Insertion Loss 1.75 dB, Upper Rejection 40 dB @ 5920-6200 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB5900B776 can be seen below.