At this point, component removal is a bit of a hunt, so we extract some screws and see which component is freed first.

Oddly enough, despite being labeled 04, the hard drive is the first component out.

We find a Samsung Seagate Spinpoint M9T ST2000LM003 2 TB 5400 RPM with 32 MB Cache SATA III 6.0 Gb/s hard drive. Try saying that ten times fast.

Sadly, hard drive replacements still void the warranty, and need some tricky formatting.

The One S packs a sweet SATA III drive, but it may still be using the SATA II interface of the original Xbox One. You can always add an external hard drive though, thanks Microsoft!