Installing and working with the HAF XM is really a pleasure due to the additional width that gives you added clearance for heatsinks and lots of room for wire management behind the motherboard tray. What is even more impressive is how much you are able to fit in a case that they are calling a mid-sized case. Being able to pack multiple video cards and an E-ATX motherboard into a mid-tower is crazy talk. The HAF XM does than and more in a case that is much smaller than today’s full size towers.
The HAF XM is a high air flow design and one of the things you have to expect with a high air flow design is noise. Having all of that ventilation carries any noise your pc makes right into your ear as well as all fan noise the case might put out. Cooler Master tried to keep this to a minimum by going with the largest low RPM fan designs possible. It’s not a silent case by any means, but it is on par with any other case on the market. You will still have to consider what you put into the case to help keep the noise down. Packing in a wind tunnel inducing CPU heatsink will mean for cool temperatures on a computer that requires you to yell over for people to hear you.
Speaking of cooling performance, considering all of the fan’s packed into this case you shouldn’t have cooling issues with nearly any setup. But if you do they did leave a few spots open to add additional fans as needed!