Detailed Product Description 20V 4.5A PA-9 AC power adapterDetailed Product Description * Replacement AC Adapter for Laptops by Dell * Type: 3 pin unique Connector size* Input: 100-240V 50-60Hz * Output:20V DC, up to 4.5A* Condition: including ac adapter and power cordCompatible Dell Part Numbers: 8725p, 310-4010, 310-7500, 8509t, 4983d.