The board it's running on only has three SATA ports, of which one is an mSATA connection. It currently has a motley collection of a 64GB Crucial M4 mSATA, a 250GB Crucial M500, and a 128GB Samsung ...
Anything can be immutable with a simple trick ...
XDA Developers on MSN

5 Proxmox defaults I never change

Some things are better left untouched ...
Ok, so I've tried Proxmox on a spare Lenovo L480 laptop that I had, which has an 8th generation Intel CPU, 8 GB RAM and a 250GB SSD drive. I originally thought to buy a mini PC, but this seems to work ...