

Well, I could be wrong here, but I don’t think I’ve ever seen a European outlet that did more than the 220-230v…
We’re not talking about three phase setups here… Residential in the USA is commonly 120/240. Not just 120.
If we’re going to talk 3-phase comparisons… then you’ll see all number of setups, but the most common would be 120/208, where 3 phases are wye tapped.
But in a typical USA home you can and will find 240 volt outlets for ranges, stoves, dryers, etc… We have outlets that provide 240.
8gbps here in USA… Quantum fiber.
I know of a few others in my area as well… Google Fiber, AT&T is offering 5gbps I think… Wyyerd is a local-ish one that’s offering 8gbps…