The high power RF circuit board is designed with 0 pins.Amplifier RF Type from the Evaluation board.Try searching with HMC740 if you're looking for variants.RF Board is included in the PCB mount.
124390-HMC740ST89E Features
0 pins Amplifier Type
124390-HMC740ST89E Applications
There are a lot of Analog Devices Inc. 124390-HMC740ST89E RF Boards applications.