There are 0 pins on this high power RF circuit board.The Evaluation board type is Voltage Controlled Oscillator (VCO).Try searching with HMC735 to find RF Board variants.The mount is attached to PCB.
110227-HMC735LP5 Features
0 pins Voltage Controlled Oscillator (VCO) Type
110227-HMC735LP5 Applications
There are a lot of Analog Devices Inc. 110227-HMC735LP5 RF Boards applications.