UPBRIGHT 19.5V 11.8A 230W AC Adapter — Compatible with Asus ROG Strix 15.6" Gaming Laptops (G501JK, GL551, G55VW, GL503 / GL503VM / GL503VD / Hero Edition, GL503VM-DB74, GL503VM-BI7N13, GL503VD-DB71) PC Power Charger

Engineered for high efficiency and dependable performance, this UPBRIGHT AC adapter minimizes electrical interference and audible noise while delivering stable power. It supports World Wide Input Voltage 100-240VAC 50/60Hz and includes comprehensive safety measures: OVP, OCP, SCP Protection — OVP: Over Voltage output Protection; OCP: Over Current output Protection; SCP: Short Circuit output Protection. Units are tested and in great working condition. UPBRIGHT provides a 30 days money back guarantee and a 1 full year service warranty. Tips: Rechargeable batteries don't last forever — the average battery last 1 to 3 years. If a battery is old or dead it may refuse to accept a charge; this is not a charger fault. If you're not sure whether the battery or the charger is defective, you must have a volt meter to determine whether the charger is producing the correct output.