The 40-784B-042 from Pickering Interfaces is a PXI RF Multiplexer with Frequency DC to 40 GHz, Power 36.99 to 47.78 dBm, Power 5 to 60 W, Frequency range DC to 40 GHz, Max current 1 Amp (Max Carry Current). Tags: Electromechanical Relay. More details for 40-784B-042 can be seen below.