I laughed at first because that would be hilarious

For a long time I had my home network "server" PC built in a desk drawer. It was a Pentium 100 with 2 Realtek NICs, 32M RAM.

Oh a LITERAL breadboard... ROFL

Ha! - you're not the only one!
I've got a couple older DOS machines that I build on wooden boards.
Mainly for two reasons:
- I didn't have any spare cases (esp for the AT style one)
- I wanted them to be as small as possible (take up less storage space)

The one on the right:
A few years back while downsizing (hopeing to move) I sold the system I used
to develop ImageDisk... It's mainboard had a exceptional FDC that could read
most all formats I threw at in (Single density/128 bytes-sector etc.)

Enough people have wanted me to continue developing and supporting ImageDisk
that I "threw together" another one - fortunately I happened to have another
identical mainboard in a box on a workshop shelf.

The board (P200MMX) is old enough to be AT (not ATX).. I did still have a
couple AT supplies, but finding a case was near impossible...

You may note the floppy cable coming off the right site has two "twist"s in
it ... I did this to make the center connector A: for the "built in" 1.4FD and
put B: at the end where it is easy to attach different drives!

The one on the left:
When I buit the DVD Robot, I needed a "cheap case". A friend gave me an old
system he had decomissioned from his lab.. I used the case and threw the board
in a box (P4 ATX - still old).
A while back I wanted another DOS machine for some testing in the workshop,
so I tossed this one together.

Both systems work fine, I normally cover them with sheets of plastic (Garbage
bags) when not using them - just to keep them more dust free.

You'll note both have network cards - I use my own DDLINK to move files on and
off of them as needed.

Dave ::: https://dunfield.themindfactory.com ::: "Daves Old Computers"->Personal

I'm surprised you can use USB3 devices in USB1 ports, most of them don't bother to include low/full speed descriptors (I guess the USB3 spec made them non-mandatory?) so they won't enumerate.

It is hard to find a decent AT case, at least at a reasonable price. Another benefit to going caseless is no more jamming pieces of paper and plastic here and there to stop vibration/rattling noises. I do have a piece of plastic screen that I lay over the motherboard sometimes. I have a Pentium II in a metal case that I also use quite a bit. Everytime I take the case off & on, it's a hassle getting it to be quiet.

While not technically on a wood board (it's a book that sits underneath the mobo), that's how my KG7 RAID runs too. Out in the open.