Cooler Master’s HAF Stacker series is one of the first unique case concepts we’ve come across in a long time. Sure there has been some great innovations in the past like the diminutive HAF XB and Enthoo’s awesome Primo which combined every highlight we could ever want in an enclosure. The Stacker on the other hand does things differently. Instead of using a one-size-fits-all solution, it allows you to customize your case with a modularized approach, adding or removing any elements or placing them in different configurations.

The Stacker concept is quite simple: there are three basic cases which can all be combined together or used separately. The base element of the Stacker equation is the 935, a mid tower case (dubbed the 925) which comes with an add-on secondary enclosure that is completely optional during your build but we ultimately recommend using it since it adds space. Cooler Master dubs this the first “mod tower” and we have to agree.