Device Control

Device Control is a convenient way for you to control the screen brightness, turn the backlight on or off, and adjust the volume to suit your needs. It also indicates the location of each port on your computer and allows you to turn your connectivity devices on or off, select a power scheme, lock your computer, turn it off, or place it in Sleep mode.

The Device Control UI also indicates if the tablet is docked:

Or if the tablet is undocked:

If you have any devices plugged into a USB port or the HDMI port, Device Control will show what type of device is plugged into each port. If you have inserted a storage device into a USB port, you may tap the USB icon to open a context menu. Tap Open to view the files in Windows Explorer.

To safely remove the device, select Eject from the menu.

There is also a context menu available for the HDMI connector.