GPK 65w Power Adapter for Acer Aspire 5740-5513 5740-5749 5740-5780 5740-5847 5740-6025 5740-6378 5740-6491 5740g-5309 5740g-5323 5740g-6395 5740g-6979 5741-6073 5810-4657 5810t-6455 5810t-8233 Ac Adapter Power Cord Charger Input: 100V - 240V (worldwide use) Output : 19V 3.42A 65Watt Service & Support 1 year warranty Designed exclusively for use with the laptops 100% compatibility with the original Replacement power supply AC power adapter was tested to match and/or exceed original product at low price.