Firing up FreeCAD for the first time in ages, developing an external ODD enclosure to house 5 ODD's that connects over USB to PC.

I have been unable to find one, but it's under $80 in off the shelf parts excluding the drives themselves. If somebody knows of one, even if it's more expensive, let me know please. Only ones I have seen are rare and connect over TB3. I haven't been able to re-find it after I found it a few weeks ago.