As its name suggests, Cooler Master’s HAF
Stacker PC case system is a fusion of design elements from the HAF (High Air
Flow) and Stacker case families. It’s also a set of modular case units that you
can combine in a variety of combinations and configurations to build just about
any kind of PC you can dream up.
Stacker - the first expandable system that allows externally modular upgrades
Want a gaming PC with its own attached
Mini-ITX game server? Can do. Looking to build an ATX rig but need more space
for watercooling gear than most standard towers will support? Not a problem.
Trying to build a single massive case that encompasses the PCs of your entire
DOTA team? (There are people doing this for LAN parties, you know.) The HAF
Stacker system can handle such a build, and much, much more.
The base of the HAF Stacker system is the HAF
Stacker 935, a PC tower case with distinctive HAF design notes on the outside
and traditional Stacker roominess inside. Cooler Master refers to the 935 as a
“mod tower,” because it’s the cornerstone of a unique, modular set of
enclosures: the 935, the 915R, and the 915F. The 935 comes with a 915R, which
is a great addition to the 935 but also makes for a pretty nice Mini-ITX
enclosure all on its own.
HAF 935 is consisted of 915F/R and HAF 925, which not only supports up to 360mm
radiators or 11 fans, also up to quad high-end VGAs for extreme cooling and
For its part, the 935 has three tool-less external
5.25-inch bays and six 2.5-/3.5-inch internal bays, the latter of which are
split up into two three-bay cages. You can remove one or both of them if you
like (there’s an SSD mount on the backside of the motherboard tray for a
stealth boot drive), but you won’t have to remove anything to accommodate
high-end graphics cards. Even with its drive cages in place, the 935 will
support cards 13.9 inches long, and the 915R up top (which has a three-bay
drive cage of its own for 3.5- and 2.5-inch drives, for a total of nine) will
take cards up to 14.17 inches in length.
Master HAF Stacker System at a glance
The 2.5-/3.5-inch bays incorporate Cooler
Master’s excellent slide-in drive trays, and although you’ll find similar
devices in use in other brands, we really like the way Cooler Master trays (and
everything else in the case, for that matter) fit perfectly and work just the
way they should. Cable management is a snap with the HAF Stacker, as there is
an abundance of cable management holes (including roomy pass-through spaces at
the top and bottom of all Stacker units) and plenty of room between the 935’s
motherboard tray and its right side panel.