Today, the Nokia Lumia 2520 tablet, running Windows RT 8.1 is available in the US on AT&T and Verizon Wireless. Fetching for $399 on contract ($499 without), the tablet won some high praise from us (with only a few criticisms) in our review.

The Nokia Power Keyboard is an optional accessory for the tablet that packs quite a punch. It has a built-in battery to offer a claimed 50% more power (5 hours), two-full USB ports, the keyboard, and it acts like a cover for the device as well. In other words, it turns a high performing tablet into a reasonable work station, with nearly 15 hours of total power.

Normally, the Power Keyboard runs for $149 on top of the price for the tablet itself, making it the combo somewhat costly, nearing full laptop range. But for a limited time, Nokia is offering the keyboard for free.

From November 22 through December 2, 2013, if you pick up the Lumia 2520, you are eligible to claim a free Power Keyboard. All you need to do is fill out the form and one will be dispatched to you in a few weeks (it could take “up to” six).

That’s one heck of an offer, one that is hard to ignore, especially when you consider the $149 value of the accessory. If that has greased the wheels in your decision to pick one up either from AT&T or Verizon, head here for more information: