... Adapter For HP/COMPAQ 18.5V-4.9A 90W Series 100% Compatible original. Laptop Adapter For HP-COMPAQ 18 ... Tip):Internal Diameter: 1.7mmExternal Diameter: 4.8mmPerformance: Short Circuit Protection and Overload Protection2.Compatible Part Number 239428-001, 324815 ... N1015v, N1020, N1020v, N1050, N1050v, 170, 190, Emachines Laptop M Series, M2105, M6410, M6807, M6809, M6810, M6811, M6410, M6805, M6807 ...