How does the Hub or the built-in SSD behave when the Mac Mini is started/restarted or switched off? Is everything automatically mounted without any problems, does the SSD remain permanently mounted for use, or can there be crashes? and is it automatically ejected when switching off? I've never had a hub like this with SSD Enclousure. At the moment I still have a 2012 QuadCore MacMini with Catalina and 4TB SSD 860Evo as a music server, but Catalina no longer receives security updates. I think the price of an M4 MacMini with a 4TB SSD from Apple is completely out of line, but I think the M4 Mini with the smallest configuration is OK in terms of price. If the hub from Satechi works perfectly, that would be a great option, it should only run Asset Upnp from illustrate which manages the music library, it doesn't need CPU power or a lot of RAM, the app is as frugal as a mountain goat ;-)