So I saw a decent price on refurbished 12TB enterprise drives on Ebay. Grabbed a couple for my home server. The plan was to move the OS to a SSD, use one of the 12TB drives for data, and the second as a storage bin for network backups. I will be moving the mobo and drives into a full sized ATX case.
Unfortunately, proprietary hardware has thrown a monkey wrench into the works. My server is an HP Elitedesk 800 G1. The power connector is proprietary, so I have ordered an adapter. The heatsink is a non-standard proprietary size. Also, the computer will refuse to boot and will need intervention after each reboot unless you jumper both internal USB headers and sound.
Thankfully, other folks have figured all this stuff out. I was hoping to get started moving partitions around today, but it will have to wait until the power adapter arrives.