Normally $349, this budget system goes from laptop to tablet and back again with an easy magnetic connector.
Holiday shoppers can save some bucks on a Surface Pro 3, various ultrabooks, Xbox One consoles and assorted accessories.
Normally $329, the PC that works as both a tablet and a notebook can be had for just $199 -- but only on Thursday.
The first 50 to buy the latest "12 Days of Deals" offer at a Microsoft Store will get two free games.
Buy a Fitbit Flex or Fitbit Charge, and Microsoft will throw in a pair of $40 earbuds at no charge.
Transformer Book Flips are $299 courtesy of Monday's 12 Days of Deals.
As part of Microsoft's 12 Days of Deals, the first 50 people who buy the notebook at their local Microsoft store will get it for even less -- $199.
The latest offer in Microsoft's 12 Days of Deals is for an unlocked version of a Windows Phone 8.1 handset from Blu Products.
The first deal of Microsoft's 12 days trims the price of a Windows 8.1 tablet by $20 and throws in a free one-year subscription to Microsoft Office 365 Personal.
The only catch? The phone is currently out of stock online, though Microsoft promises it will be available for Black Friday.