The A65-MH543 from Akon Inc is a Band Pass Filter with Frequency 9.5 to 13.5 GHz, Insertion Loss 1 dB, Rejection -50 dBc, Upper Rejection -50 dBc, Lower Rejection -50 dBc. Tags: Module with Connectors, Drop-In, Combline Filter. More details for A65-MH543 can be seen below.