Features: 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