Raspberry Pi PoE+HAT Expansion Board

High-Power PoE+ Support (802.3at Class 4): Delivers up to 25.5W (5V / 5A) of continuous DC power alongside Gigabit network connectivity over a single RJ45 Ethernet cable.

Higher Efficiency & Thermal Performance: Features an upgraded planar transformer and improved power circuit design to minimize conversion heat and maximize power transfer efficiency.

Onboard Controlled Brushless Cooling Fan: Equipped with a $25\text{mm} \times 25\text{mm}$ brushless fan dynamically controlled by temperature settings in Raspberry Pi OS to keep the host CPU cool under heavy loads.

Fully Isolated Switched-Mode Power Supply: Built with a flyback transformer topology providing electrical isolation for safe, reliable operation in enterprise and industrial networks.

Compact Drop-In Stacking Design: Mounts cleanly onto the 40-pin GPIO header and 4-pin PoE header of compatible Raspberry Pi mainboards without blocking access to surrounding ports.

PCB & Electrical Composition: Built on a high-grade multi-layer FR4 fiberglass circuit board engineered to handle high current throughput safely.

Cooling Fan Maintenance: Periodically clear dust accumulation from the fan blades using compressed air. Avoid applying direct pressure or inserting objects into the fan blades while spinning.

Static Handling Precautions: Standard electrostatic sensitive device (ESD). Handle the HAT by its fiberglass edges and use anti-static grounding precautions during installation.

Environmental Limits: Operating temperature range is 0^C to 50^C. Protect from high humidity, liquid exposure, and conductive metallic debris while connected to live network switches.

Upgraded Single-Cable Solution Pitch: Market as the high-power successor to the standard PoE HAT, ideal for users running power-hungry USB peripherals, external SSDs, or high-load server workloads.

Ideal for Edge Clusters & Enterprise: Position towards home-lab builders, Kubernetes cluster operators, digital signage installers, and remote network node deployments requiring maximum reliability.

Recommended Cross-Sell Equipment: Pair with active 802.3at PoE+ Switches / Injectors, Cat6 Shielded Network Cables, and Raspberry Pi 4B / Pi 5 mainboards.

Compatibility Notice: Highlight full compatibility with 4-pin PoE-enabled Raspberry Pi models, including the Raspberry Pi 4 Model B and Raspberry Pi 3 Model B+.