Applicable Models: This Power over Ethernet (PoE) mini expansion board is designed for Raspberry Pi 3B+ and 4B, supporting the IEEE 802.3af network standard. Power Over Ethernet: Enables PoE power delivery, allowing your Raspberry Pi to be networked and powered via a single network cable connected to a PoE device. Fully Isolated Switch Mode: Features a fully isolated switch mode power supply (SMPS) and supports access to cooling fans. Flexible Design: Boasts a more compact component layout and smaller overall size for increased flexibility in use. Durable PCB Material: Constructed from high-quality PCB material, ensuring long-term stability and resistance to deformation. Item Type: PoE Mini Expansion Board Material: PCB Model: PoE HAT（E） PoE Input Voltage: 37V to 57V DC PoE Output Voltage: 5V 2.5A DC Network Standard: 802.3af PoE Application: Compatible with Raspberry Pi 3B+ 4B Package Includes: 1 x PoE Mini Expansion Board