JoeG4
macrumors 68040
(I imagine you already know this but) you can get full size PCI-E cards that either act as an adapter for a single m.2 card, or some will split an x16 slot into 4 x4 m.2 slots. Others split an x4 into 4 x1 slots. I'm not sure how well the apple silicon mac pro behaved with those, but they were definitely an option, and I think OWC even sold a pci-e card or two for this purpose.It wasn’t a successful model because it didn’t offer the option to install a better CPU, GPU, or memory. It didn’t even have PCIe M.2 slots for NVMe SSDs. And it didn’t have them because it couldn’t; everything was integrated into a single chip.
But buying a $6999 tower that has similar performance to the $3000(?) model mac studio is OUCH. That's a HUGE price to pay!
And seriously, I get the argument for using thunderbolt 5, but if you want the high performance you're basically paying out the ass for it.
Put it this way, for $129 I was able to get a 2TB m.2 nvme ssd which can do 7250MB/sec read speeds. There are (pre-price-hike) SSDs that do 12GB/sec (if I remember correctly). Again I think the cheapest TB5 enclosure is $150 right now. And those do 80gbps or 10GB/sec.
We could talk about external boxes and network storage all day, but they basically gave a middle finger to anyone who wants affordable high performance storage. Either you pay A LOT and get a mac pro, or you buy some very expensive TB5 enclosures, or you just deal with whatever the mac studio gives you out-of-the-box.
And also, custom orders are usually a little more expensive. You can often get a base model mac studio for $100-500 off MSRP. The custom configurations almost never go on sale. In my case, at the time I was able to buy mine for $1700 - a larger SSD wouldn't have been $200 or $500 or whatever, it would've been $300 + that 200/500/whatever.