Stop lugging your AC adapter back and forth between home and office. Get a second AC adapter for your notebook and keep one in the office and one for home or travel. The Dell™ 90-Watt AC adapter enables you to operate your notebook or charge the battery from electrical power outlets. This product has been tested and validated on Dell systems to ensure it will work with your computer. It is supported by Dell Technical Support when used with a Dell system. - Enables you to operate your notebook or charge the battery using electrical power outlets- This product has been tested and validated on Dell systems to ensure it will work with your computer- Supported by Dell Technical Support when used with a Dell system This product is compatible with the following systems:- Inspiron 1370- Inspiron 1546- Latitude E4200- Latitude E4200C- Latitude E4300- Latitude E5400- Latitude E5500- Latitude E6400- Latitude E6400 ATG- Latitude E6400 XFR- Latitude E6500- Latitude XT2- Precision M2400- Precision M4400- Studio 1450- Studio 1457- Studio 1458- Studio 14z (1440)- Studio 15 (1537)- Studio 1555- Studio 1557- Studio 1558- Studio 1569- Studio 1735- Studio 1737- Studio 1745- Studio 1747- Studio 1749- Studio XPS 16 (1640)- Studio XPS 16 (1645)- Studio XPS 16 (1647)- Vostro 1088- XPS M1330.