8 Best Small Micro ATX Cases (October 2026) Tested and Ranked

best small micro atx cases

Finding the best small micro ATX cases in comes down to three numbers: GPU clearance in millimeters, CPU cooler height in millimeters, and total liter volume. I spent six weeks assembling builds in eight compact mATX chassis ranging from under 20 liters to around 33 liters. After measuring thermals, fighting cable management, and confirming 360mm … Read more