It is entirely possible to build a potent gaming PC inside a compact case and if that's your plan, you might want to consider Fractal Design's Define Nano S. The tiny tower is currently on sale at Amazon for $52.
This is a case for mini-ITX motherboards only. That means if you're building a system around a micro-ATX mobo, this case won't work—you'll need something a little bigger.
There are not many mini-ITX motherboards available for Ryzen—Biostar is the only one with mini-ITX options right now—but the situation is different for Kaby Lake and other Intel processors.
What you get with the Define Nano S is a sharp looking chassis that supports up to three liquid cooling radiators, including 280/240mm, 240mm, and 120mm mounts. It also has pre-drilled holes to support many DDC and D5 liquid cooling pump variants.
For air cooling, the case comes with two fans, including a 140mm fan in the front and a 120mm fan in the rear. There is room to add another fan up front, plus two more up top.
Storage options consist of two internal 3.5-inch drive bays and two 2.5-inch mounts.
The case also accepts full-size graphics cards up to 315mm (12.4 inches). As a point of reference, Nvidia's reference GeForce GTX 1080 Ti measures about 267mm (10.5 inches).
Go here (opens in new tab) to grab the case on sale from Amazon. It might show a more expensive price from a third-party by default. If that's the case, scan the "Others Sellers on Amazon" section for the one that is sold by Amazon.com.
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