About this item Input: 100-240V, 50-60Hz; Output: 19V 4.74A 90W (75W, 65W Compatible) Connector Size: 5.5mm * 2.5mm 90W Laptop Adapter Charger compatible with various models, including X401, X501, X550, Q301, D550, and more. Perfect for a range of laptops, providing reliable performance. Dimensions: 7.44 x 4.92 x 1.61 inches.