... DC20V 3.5APower: 70Wcolor: blackRecommended for: for Dell Laptops Series. Strong built for heavy duty and long ... Peak- to -peak riplle : <100MV compatibility : FOR DELL INSPIRON: 2500, 2600, 2650, 3700, 3800, 4000, 4100 ... 4150,5000, 5000e,7500,7550, 8000, 8100, 8200 FOR DELL LATITUDE: CP, CPi, CPiA, CPiD, CPm, CPiR, CPt ... C500,C510, C540, C600, C610, C640, C800, C810, C840 FOR DELL PRECISION: M40, M50