I hope someone tries it because I want to know if it can be done.
I would like this confirmed too. And to answer @Mike Caddick it's because the HDD it comes with is slow as !&&*. The OS would probably be a lot snappier if it was on a SSD.
The fan is actually larger than the original. 112mm compared to 120mm.
There is one thing that is not clear to me about this teardown. Does the One S motherboard have a SATA3 port or is it only the Seagate HDD that has the SATA3 port? Also, the controller was dismissed as being the same, but it's definitely not the same as the original Xbox One controller from 2013. It has a headphone jack, Bluetooth, different bumpers, and a textured grip.