The Cooler Master Q500L is an ATX retrofit of the micro-ATX Q300L, designed to fit full-sized ATX motherboards and components. All of this is done entirely within the footprint of the existing SFF case, which is the gimmick of Cooler Master’s Q series: multiple different cases, one (small) external size. That’s good, because Cooler Master decided to fill the entire thing with Reese’s Cups before they sent it to us, and if they’d done that with something from the Cosmos line we’d be in serious trouble. We have been well-fed, though, and we’ve learned that freezing them makes them much better. Seriously.

We’re definitely losing money on this review, and it’s not just because we had to hire an intern to eat the 18 pounds of Reese’s cups that Cooler Master included in the case. We tried hard to make the Q500L perform well in testing – we tried to force it, with Patrick spending a week longer working on this case testing than we typically spend. This is Cooler Master’s Q500L mini case for full ATX motherboards, re-using the Q300 tooling from a micro-ATX case design, but shifting the power supply around to accommodate ATX motherboards. It’s a unique approach to an enclosure and, at $60, we can overlook a lot of limitations in favor of affordability.

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