I used to work on a product that these would have been perfect for. At the time (early 2000s) we were using consumer mini-itx stuff in industrialised cases, bec

I used to work on a product that these would have been perfect for. At the time (early 2000s) we were using consumer mini-itx stuff in industrialised cases, because the true "industrial" stuff was all decade-old tech, or an absolute fortune (and still at least a couple years out of date). These tick a lot of useful boxes, in particular the supply voltage, DIN Mount, usb host ability (plug in a PC to be able to field service a dead unit), real-time clock, and isolated IO modules.