There are 0 pins on the high power RF circuit board.Attenuator RF Type from the Evaluation board.Use HMC985 to search for variants of the RF Board.PCB mounts RF Board.
EVAL01-HMC985LP4KE Features
0 pins Attenuator Type
EVAL01-HMC985LP4KE Applications
There are a lot of Analog Devices Inc. EVAL01-HMC985LP4KE RF Boards applications.