[wpm]

Audio interfaces, video capture interfaces, network interfaces, etc etc etc.

[hot_gril]

Would a TB-PCIe enclosure like the Sonnet ones not cut it? I get that it's still easier to have PCIe built in, but that's a big premium to pay.

[wpm]

Those cost hundreds of dollars and often only have 1 slot. The premium can’t be avoided.

[hot_gril]

Yeah, but it's either that or buying outdated hardware at this point because they don't refresh the Mac Pro. Idk why Apple didn't just make their own expansion add-on.