Go to Amazon.com : http://www.amazon.com/gp/product/B006KT0M6W?tag=theatrecat-20
Gateway 19V 4.74A 90W Replacement AC Adapter for Gateway Notebook Models: Gateway NV57H13u
Input AC 100 240V 50 60Hz
Output 19VDC 474A 90W
100 Compatiblw with PN AK090AP016
Come with 3ft Power Cord
1 Year Warranty