About this item Input: 100-240V 50-60Hz, Output Max: 19.5V 2.31A 45W, Connector size: 4.5mm*3.0mm (blue tip) 45W Laptop Power Supply AC Adapter Charger Cord Replacement, Supports fast charging. Exceptional Compatibility: Fits laptops with a 45W Charging Cord featuring a 4.5mm Blue Tip power connector. Compatible with various laptop charger models. This 45W laptop charger is designed for a wide range of models, ensuring excellent compatibility. Product Dimensions: 7.91 x 4.88 x 1.73 inches.