Upgrade new Mac Studio after purchase?

You do get 4 Thunderbolt4/USB4 ports for expansion.

With a base model of 32 GB RAM, and the M1 Max chip, unless you plan on doing mega scale 8K films or super duper realtime 3D modeling, what need for expansion would you need? If you were doing such, you would have the budget to get the Ultra M1 model.

I would take it that that is not your case since you are still using a 2012 Mini.

I would say that upgradability has probably gone out the window for good for Apple devices since they moved to the system on a chip approach.

My understanding is that the CPU, GPU, and RAM on the Mac Studio are all part of the SoC, and the storage is also soldered onto the motherboard, which allows them to save a bunch of space and get that small form factor.

It may or may not be a coincidence that this also allows Apple to put a markup on any upgrades you order at purchase, rather than letting you do them yourself...

No they are not user upgradable, you get what you buy.

No, but you can return it for a full refund no questions asked…