Dell XPS 10 Tablet - Manual (Page 36)

36 | Using XPS 10 Mobile Keyboard Dock
Docking Your Tablet to the Keyboard Dock
Remove the two docking-port covers from the tablet. 1
Align the power-adapter/docking port on the tablet with the 40-pin 2
docking connector on the keyboard dock. Or, center the Windows
button to the painted line on the front of the hinge holder.
NOTE: The hinge holder can be rotated manually to a better position
for easy docking.