The SilverStone SG12 is an SFF case which dreams big, built for Mini-ITX through Micro-ATX motherboards it is still large enough to fit a GPU over a foot long.  Overall it is 266x210x407mm (10.5×8.3×16") in size, still small enough to fit in a living room or cart around with you thanks to the built in handle but large enough to fit high end components.  Bjorn3D installed an i7-4790K on an ASUS Z97M-PLUS with a GTX 970 powered by a SilverStone SST-ST55F-G PSU which is about 40mm shorter than the majority of PSUs.  For a cooler they used the SilverStone SST-ST55F-G, the 140x82x139mm size comes close to the maximum size you can fit into the case.  Check out their full review here.

"Here at Bjorn3D we are no strangers to the SilverStone brand. They have been creating awesome cases, power supplies, coolers and more since 2003, and we have been fortunate enough to take a look at many of their offerings over the years. Early on in their history, they created the Sugo series of cases, a line which caters to those that wish to build a small form factor PC."

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CASES & COOLING