... ur detailed requirement.specifiationfit for laptop models:Center pin diameter: 1.65mmCompaq V2000 Series: V2000, ... C3500, 5110H, 6200, 6210, 6240, 7100, 7170Center pin diameter: 2.5mmCompaq Presario:1200*, 1210, 1215, 1220, ... 9300 Series, 9400 Series, 9410 Series, 9411AWSMi, 9412WSMiCenter pin diameter: 1.66mmAcer Travelmate: 505DX, 506T, 507DX, ... Jack and DC Cable for HP,IBM,DELL,SONY,ACER,LG etc.