Features: brand new and high quality PoE (Power Over Ethernet) capability, fully support IEEE802.3af Onboard cooling fan, allows auto running on powerup OR programmable control, configured by switch Supports PoE applications in Fast/Gigabit Ethernet environments Short circuit for protection; Over temperature for protection High efficiency isolation class 1.5KVrms. Easy to install and low cost (isolated type)Low output ripple and noise; 1500Vrms isolation (input-output) Specifications: POE Power Input: 37V ~ 57V for DC in POE Power Output: 5V 2.5A for DC out OLED Pixels : 12832 Network Standard: 802.3af PoE OLED Driver: SSD1306 Size: approx: 56 65mm/2.5x2.2in Programmable classification (default: Class 0) Fit for:Raspberry Pi Power Over Ethernet HAT for Raspberry Pi 4 Model B / 3B+ Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 PC x Ethernet POE Module