Silicon Labs Wi-SUN-PK6016A Pro Kit is essential for expanding wireless connectivity capabilities. The Silicon Labs Wi-SUN-PK6016A comes with a BRD8016A Wireless Expansion Board, the central hub for connecting the BRD4270B Radio Board, and a Raspberry Pi (not included in the kit). The primary function of the wireless expansion board is to act as a Raspberry Pi HAT, allowing for seamless communication between the radio board and the Raspberry Pi. The kit includes a dual-row female socket and a 0.1″ pitch connector, which must be soldered.