There are 0 pins on this high power RF circuit board.The Evaluation board type is Amplifier.Try searching with HMC757 to find RF Board variants.The mount is attached to PCB.
131216-HMC757LP4E Features
0 pins Amplifier Type
131216-HMC757LP4E Applications
There are a lot of Analog Devices Inc. 131216-HMC757LP4E RF Boards applications.