Features: Adopt imported highlycontrol chip program, high efficiency, higher security, more stable performances Support 10/100/1000Mbps Ethernet Support 802.3af/at PoE networking standard Ethernet power supply using isolated switchig power supply (SMPS) Effective of power-using equipment DC5V output, suitable for a variety of small networking equipment power supply and Internet access Black matte metal housing, better heat dissipation Specifications: Item: Ethernet Adapter Support 10/100/1000Mbps Ethernet Connection: USB C /DC5.5x2.1 Optional Support 802.3af/at PoE Size：about 10.25x2.96x2.48cm/4.04x1.17x0.98in Package Includes: 1PC Ethernet Adapter note: Due to the problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.