Xiaomi Mi Flash Tool comes as Installer, which means you have to install it first on your computer in order to use it. While Installing the Tool, you will see the packages that comes with the tool including the ADB Tool, Drivers and Mi Tool. Inbuilt Drivers. Xiaomi Mi Flash Tool comes with In-Built USB Drivers including Google
The latest Mi flash tool is coming with built-in drivers which are required for flashing purpose. The Built-in drivers are Google ADB Drivers, Qualcomm Drivers & RNDIS Drivers. Also, You can install them again through Application Option Panel.