Cases like CoolerMaster HAF XB

Here's a few XL-ATX cases (dont have time to post links):

- Corsair Obsidian 900D
- NZXT Phantom 630
- NZXT Switch 810
- Azza Hurrican 2000
- Antec P280
- Rosewill Thor
- Silverstone Raven RV02B

Are you talking low profile like mATX / mITX? Or are you talking a full tower?

I need a bit more info to go on when you say "cube style". Is there any other case you're looking at besides the HAF XB?

None of those cases will really fit a large power supply like the AX1200, you might want to return that. Something like the Fractal Design Node 304 is probably what you're looking at but it too won't fit a large power supply.

If you're looking for cube style for full ATX mobo.. try considering this corsair case. though its not indicated the dimension of the PSU that can fit in this case, you just research it if you want to consider cube case for full ATX mobo other than CM HAF XB.

http://www.corsair.com/us/pc-cases/carbide-series-pc-case/carbide-series-air-540-high-airflow-atx-cube-case.html

Not trying to revive the thread, but wanted others researching this to know that an AX1200i does fit in the HAF XB.... with some potential caveats. I see someone else has already confirmed this in a short response, but wanted to add a little more detail from my experience with this case/PCU combo:

I originally removed the PCB board with Molex connector without even testing the space and just connected SATA & power directly to my 3.5 drives. I honestly didn't waste time testing it with the Molex PCB because 1) I didn't want to add a single modular power line for JUST one Molex device, and 2) I read so many reviews of people having problems with some of the hot swap boards that I didn't want to take a chance with my data. Plus, seriously, why would anyone want to go to an inferior PSU just to have hot swap in a workstation? My PowerEdge Server has 8 hot swap SAS bays and, yes, I'd rather not take that system offline, but my workstation's SSD allows me to reboot in under 15 seconds. With all the awesome access angles in this case, downtime = a couple minutes max to swap my 3.5 data drives.

It should be noted that Cooler Master does make a PCB board with a short cabled SATA connector for power. Unlike the static facing Molex connector, the SATA version I saw in the store model is on a small flexible cable which can be angled/routed in any direction. (Unfortunately the box they handed me from the backroom had Molex). I believe this particular "flex" PCB would work with a 200mm PSU since it can be tucked off to the side -vs- the Molex taking up precious horizontal spacing. But, the question remains, is the SATA powered PCB an older version, or simply a different option?

Due to the reported PCB issues, it is recommended that users contact Cooler Master support regardless since the company will RMA your PCB if you have a problematic version. I have sent in my request for verification and asked if any of the new revisions have the SATA flex connection.

At this point I really don't care about the hot swap anymore (especially with wasting space for a single modular Molex cable), but if they do send me the flex PCB I'll install it and report back with my findings. There is also a new version of the case coming out, but I have not seen any pictures or info on the PCB for it.