Lenovo ThinkPad X1 User Manual page 38

1. Lift the lock levers.
2. Insert the Productivity Module into the guide holes of your tablet.
3. Close the lock levers to lock the Productivity Module.
Using the Productivity Module with your tablet
You can use the Productivity Module with your tablet in the following three modes.
Tablet mode
With the Productivity Module attached, you also can adjust the kickstand to many angles in stand mode
and stylus mode. The following figures show the supported angles of the kickstand when the Productivity
Module is attached to your tablet.
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ThinkPad X1 Tablet User Guide
Stand mode Stylus mode