Compatibilityfor Microsoft Surface Pro 9, Surface Pro 8, Surface Pro X, Surface Pro 7+, Surface Pro 7, Surface Pro 6, Surface Pro 2017, Surface Pro 4, Surface Pro 3, Surface Laptop 5/ Surface Laptop 4/ Surface Laptop 3/ Surface Laptop 2/ Surface Laptop 1, Surface Laptop Studio, Surface Laptop Go 2, Surface Laptop Go,Surface Go 3/ Go 2/ Go,Surface Book 2/ Surface Book. ParameterInput(AC): 100-240V (Worldwide use) Output(DC): 15V- 4A 65W. USB Port: 5V-1A 5W USB 2.0. It also supports 15V-2.58A 44W, 12V-2.58A 36W and 15V-1.6A 24W output power. Fast chargingKSW KINGDO 65W Surface Laptop charger can quickly charge compatible laptop. The intelligent control chip inside the power charger provides current protection, short circuit protection, voltage protection, temperature control, fire protection, and grounding protection. and the USB port allows you to charge another device such as your phone at the same time. Package includes1x KSW KINGDO 65w charger1x the Extra-long Power Co