Wanted to upgrade the number of USB 3.0 ports on the front of my PC. I had a spot that looked like a 3.5" box in a 5.25" bay with 2 USB 3.0 ports. I ordered a new 3.5" box with 4 USB 3.0 ports and went to swap it out, only to find out that it wasn't really a 3.5" box in an adapter, it was all welded together as one piece of metal. Oops!
I live in small town Iowa, with no stores anywhere nearby where I could purchase such an adapter, but I do have a 3D printer (or two - or three) and found this file, printed it out, spray painted the front bezel black and was up and running the next morning!
15% (don't think it matters)