The -over-Ethernet (POE) Module offers a convenient and cost-effective way to deliver to your device.The module allows you to put a DC voltage onto specific pairs of the Ethernet cable so that devices connected to the network can use it as a source.The module is perfect for any space limited PoE applications such as IP cameras, biometric readers, RFID, wireless access points, extenders, VOIP phones, networked audio etc.It's tiny size is a perfect match to the 4B and 3B+ in IOT and building automation applications. It is ultimate solution for 4B/3B+.It delivers clean and reliable to the latest Pi 4.Easy to assemble.Compatible With: 4 Model B / 3 Model B+Built-in Cooling FanSupport IEEE 802.3af or 802.3at PoE standardInput: IEEE 802.3af Compliant PoEOutput: 5V +-5% up to 2.5A*Protection Circuitry: Transient Overvoltage, Undervoltage Lockout, Thermal Shutdown, Foldback Current LimitingActive airflow and adequate cooling required for stable continuous operation at high load.Material: plasticcolour: As shownPackage Contents:1 x POE supply module(Label random, don't accept the specified Label.)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.