Microsoft is currently offering $150 off its entry-level Surface Pro 4 - reducing its price from $899 to $749 - but you'll have to be quick to take advantage of that offer, as it ends later today. But the company has also launched another deal on its high-end Windows 10 devices, which will be available for a lot longer.
You can now get $100 off the Surface Dock - which usually costs $199 - when purchasing almost any Surface Book, priced from $1,499 to $3,199. There is one exception: the Intel Core i5 model with 128GB SSD, 8GB RAM and discrete GPU - priced at $1,699 - does not qualify for the Dock discount.
A similar offer is available on the Surface Pro 4, which costs up to $2,699 - but you'll only get $50 off the Surface Dock with the cheapest Pro 4 models.
That deal will remain available in the United States (including Puerto Rico) on both the Surface Book and Pro 4 until September 3.