Features: The Power-over-Ethernet (PoE) module provides a convenient and cost-effective way to deliver power to your device. The module allows you to apply a DC voltage to specific pairs of the Ethernet cable, enabling connected devices to receive power through the network. The onboard cooling fan can automatically operate when powered or be programmatically controlled based on processor temperature. Its compact design is compatible with the Raspberry Pi 4B and 3B+ for use in IoT and building automation applications. It delivers stable and reliable power to Raspberry Pi 4B and 3B+. Includes protection features such as transient overvoltage protection, undervoltage lockout, thermal shutdown, and foldback current limiting. Package Includes: 1 x Raspberry Pi 4 Model B/3B+ PoE Network Expansion Board Specifications: PoE power input: 37V–57V DC Output: 5V ±5%, up to 2.5A Network standard: IEEE 802.3af PoE Dimensions: approximately 30x30mm (1.18x1.18 inches) Note: No retail packaging included. Slight variations in dimensions may occur due to manual measurement. Product color may vary slightly due to monitor display differences.