Those who ordered Nokia Lumia 2520 tablets in the U.S. a few months ago have recently received their free Power Keyboards. If you missed out on the deal but still want the keyboard, you can now order it at the Microsoft Store online. It costs $149 with free shipping.
The Nokia Power Keyboard for the Lumia 2520 provides a physical keyboard input, an extra 2027 mAh battery, touch pad, and two full-sized USB ports. It also acts as a protective case for your Lumia 2520.