About this item Input: 100-240V, 50-60Hz, Output: 19.5V 3.34A 65W, Connector size: 7.4×5.0mm Compatible with various laptop models including Dell Latitude series. This replacement charger features a built-in protection chip to prevent damage from overcharge, overdischarge, overvoltage, overheating, and short circuit. It has passed multiple rigorous tests including a drop test from 1.2m, a 120-minute aging test at 110V, a 2000-cycle DC plug swing test, and a 3000V high-voltage test. Constructed with a flame-retardant housing for added safety and durability. Product dimensions: 5.9 x 4.9 x 1.2 inches.