Please check if your USB-C PD adapter has enough power to charge the Microsoft Surface laptop before use, otherwise, it may not be usable Designed to use USB-C PD charger to charge your device for Microsoft Surface pro/3/4/5/6/7/8 The charging speed varies depending on your device and wall charger. We recommend that you use a USB-C PD charger. (Charging power requirement: 45W or higher, 15V output, check your current charger to make sure the output is 15V) Surface to USB-C is very suitable for charging Surface devices with a power bank or USB wall charger With this adapter, you don't need to buy an additional adapter (only supports charging, not sync data) Small and light, it is very suitable for connecting devices, while you are still in the bedroom, office or wherever you want to charge Compatible with: Microsoft Surface Pro 8/7/6/5/4/3 Microsft Surface Pro Go Microsft Surface Book 1/2/3 Package included: 1 x Adapter Other items not included