@Daz_Rich said in Am I a Fool?:

I was thinking either some kind of SD hot swap card with a switch might exist (SD-card and switch is no longer a searchable term, thanks Nintendo)

it exist, device plugs into SD card slot and has one sd card slot and one usb host port for a usb flash or even 2 sd card slots, usb client port where you connect a computer that control the switch.. it's rather expensive and used for development, does not really makes sense for your purpose

connectors are these (ATX 24 pin), not DB 25,

😄 😄 Those are great, I was replying before first coffee no clue how I seen DB25 😄