Xbox One has non-replaceable hard drive, external storage is supported

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Putin said:

Puppyroach said:
I´m just really happy with the notion off being able to play my games from an external HDD in the future, that really makes it easy to take your games to a friends house.

Isn't your external HDD is somewhat bound by your console, so you can't just put it in any XBO so anyone can play. And you still need original BD to play it. If it's not Live d/l.

It would likely be bound to your profile and your console, as it is with the Xbox 360.  However, I can take my Xbox 360 HDD stick it in another console, as as long as I sign-in with my profile on Xbox LIVE it's fully accessible by me.  I suspect the Xbox One would be the same.