AC Input Voltage : 100-240V 50-60Hz DC Output: 19.5V 16.92A (Compatible with 16.9A 14.36A 11.8A) Output Power:330W (Compatible with 280W 230W), Connector: 5.5mm*1.7mm Replace the model: A20-330P1A Compatible with: Acer Predator Helios 300 N20C11 N20C3 N22C3 Laptop Charger Package: 1x AC adapter & 1x AC power cable. Customer Service: Return and refund within 30 days 12 Months warranty for quality-related issues; 7d*24h Email support