GPK Systems Ac Adapter for Acer Aspire 5738z 5738g 5720z 5739g 5715z 5735z 5810tz 5810tzg ; 5742-7120 5742-7645 5742-7653 5742-7765 5742z-4200 5742z-4601 5742z-4685 5745-7833 7551-3416 7551-3634 7551-5358 7741-7870 7741z-4475 7741z-4592 7741z-4633 7741z-4643 7741z-4815 Power Cord Charger Input: 100 - 240 V (worldwide use) Output:19V 4.74A 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.