Micro-ATX cases use ATX power supplies?

[micrometers]

Or do they use a custom form factor?

 

[TemjinGold]

Yes.

 

[RU482]

yes, Micro ATX cases use ATX power supplies.

Anything smaller than microATX is where they start to shrink the power supply in most cases

 

[micrometers]

That makes things a lot simpler. thx

 

[bigsnyder]

Some older mATX cases use the SFX factor PSU's. Probably rare these days, but just be aware that may be a possibility.

 

[fuzzymath10]

There are at least some micro ATX cases that are slimline and therefore have smaller PSUs. I have had two fairly recently: the Antex Minuet and the Antex NSK-1480. They are noticeably thinner than regular micro ATX cases with the drawback that you can only use half height expansion cards and usually a limited number of 3.5" drives.

 

[_Rick_]

Also, check clearance regarding length of the PSU you can install. The ATX standard doesn't seem to define minimum/maximum length, so there's quite a variety of different sized PSUs out there, and quite a variety of possible clearances in cases. Best to stick to PSU's that are around 16cm long or shorter for smaller cases.