0 pins are on the high power RF circuit board.Input RF type Switch, SP8T of the Evaluation board.Using the HMC322 search parameter, you can discover variants of the RF Board.PCB is the one that mounts RF Board.
107780-HMC322ALP4 Features
0 pins Switch, SP8T Type
107780-HMC322ALP4 Applications
There are a lot of Analog Devices Inc. 107780-HMC322ALP4 RF Boards applications.