
Did you ever install a CD-ROM drive in a desktop PC? These disc readers come in a standardised form that slides neatly into a slot in the case, a particular width and length, and the Minisforum MS-01 mini workstation is a very similar size. There's no slot or tray in the front, of course, such things having been consigned to the past, but you do get a power button that’s in exactly the same place as a CD-ROM’s eject switch.
This means it’s a black cuboid, just over an inch thick and ready to melt into the space below your monitors and basically become invisible once installed. It’s got loads of connectivity, plenty of processor oomph, and quite a reasonable price.