Features: Brand new and high quality. PoE (Power Over Ethernet) capability, fully supports IEEE802.3af. Built-in cooling fan, allows automatic operation on startup OR programmable control, configured with a switch. Supports PoE applications in Fast/Gigabit Ethernet environments. Short circuit protection; Over-temperature protection. High-efficiency isolation class 1.5KVrms. Easy to install and low cost (isolated type). Low output power ripple and noise. 1500Vrms isolation (input-output). Specifications: POE Power Input: 37V ~ 57V DC in. POE Power Output: 5V 2.5A DC out. OLED pixels: 128×32. Network standard: 802.3af PoE. OLED driver: SSD1306. Size: approx. 56 × 65 mm/2.5 x 2.2 inches. Programmable classification (default: Class 0). Suitable for: Raspberry Pi Power Over Ethernet HAT for Raspberry Pi 4 Model B / 3B+. Note: Due to lighting effects and shooting angles, there will be some tolerances in the product, please understand. Please allow 0-1 cm error due to manual measurement. Package includes: 1 PC x Ethernet POE Module.