will the PSU fit in this case?

[Dr Studly]

my psu i am buying says ATX 2.1
what does that mean? will it fit in any ATX Mid Size Tower?
cus i am getting an ATX Mid Size tower... haven't decided which one yet tho...

here is the mobo i am getting

are all basic PSUs the same size?

 

[suprasteve]

there's a post somewhere else that said that ATX2 just has like 4 more wires or something so I think it would be fine, but I don't know from experience
EDIT: http://computerforum.com/showthread.php?t=36059

 

[kjkiller]

i think it would cause the atx2 has 4 more wires like he said, which wouldnt be a
problem

 

[The_Other_One]

Unless stated, they are all the same size. Some cases use smaller ones to keep the case size down, but those are quite obviously different(small desktop cases, older HPs, emachines, etc...