100% Brand new 100V - 240V AC to DC Power Adapter supply * Input: 100V~240V , 50~60Hz * Output: DC 24V 200mA 300mA 400mA 500mA 600mA * DC plug size Outer Diameter: 5.5mm . Inner Diameter: 2.1-2.5mm (Tuning fork pin inside. It is Perfect to fit 2.1mm and 2.5mm socket) * Plug Specifications: US Plug * The adapters Connector: inside positive (+) . outside negative (-) pack: 1pcs Power Supply