For DELL LAPTOP CHARGEROutput DC: 19.5V 4.62A 90W supports fast charging(Also Compatible With 19.5V 3.34A 65W/19.5V 2.31 A 45W),AC Input: 100 - 240V 50 - 60Hz, Connector size: 4.5X3.0mm.(Please refer to the picture to comfirm your connector size before purchase).