A high power RF circuit board with 0 pins is designed.RF type is Amplifier from the Evaluation board.Try searching for the RF Board with HMC374 if you are looking for variants.PCB mounts RF Board on the wall.
EVAL01-HMC374SC70E Features
0 pins Amplifier Type
EVAL01-HMC374SC70E Applications
There are a lot of Analog Devices Inc. EVAL01-HMC374SC70E RF Boards applications.