This 0.1 inch pitch 2x2 Female Header is designed for seamless integration with the Raspberry Pi, aligning perfectly with the 4-pin 'PoE' header on models such as the Raspberry Pi 3 and above. It is ideal for users looking to enhance their board's functionality.Benefits include a perfect fit for Raspberry Pi PoE HAT, compatibility with 2x20 socket riser headers, and it allows for the simultaneous use of a 40-pin stacking header. This enables users to stack the PoE HAT with an additional add-on board, boosting versatility without compromising performance.Simply position the header on the existing 4-pin connector of your Raspberry Pi. Suitable for models including Raspberry Pi 3 B+, 4, 5, and newer versions. Provided as a single unit per order.