GPK Systems 90 Watt 3 Prong Ac Adapter for Dell Studio 1569 1457 1458 14z (1440) 15 (1535) 1536 1537 1555 1557 1558 1569 1735 1737 1745 1747 1749 Dell Studio XPS 13 (M1340) 16 (1640) Laptop Power Cord Charger Input: 100V - 240V (worldwide use) Output: 19.5V 4.62A 90Watt 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.