He wants an mATX case. 95% of those are not mATX.Originally Posted by JackCY
https://pcpartpicker.com/products/case/#sort=price&xcx=0&J=3,20&f=7
21 pages, not just 4 products like above list.
External 3.5s are for 3.5" fan controllers ... floppy drives (lel) ... WC reservoirs ... card readers ... whatever you want to see/use from the outside of the case. You can put a HDD in them if you wanted, too. Just leave the front bezel in so you won't see the edge of the HDD from outside the case.