Originally Posted by Neocleous
Does anyone have a picture of the end of the cable that goes into the back of the kinect rather than the Xbox itself?
I looked on iFixit where they did the kinect teardown and from their picture it looks like a USB 3.0 B connector but it is hard to tell from their picture. It may be easier to just replace the entire cable rather than extend the original
It's 'almost' a USB3 connector. The top section of the plug into the back of the Xbox is offset, whereas a normal USB3 connector has that section centered. As to why and what pins are on it, I don't know.
As for length, 3 meters max is mentioned here
Although maximum cable length is not specified in the USB 3.0 specification, the electrical properties of the cable and signal quality limitations may limit the practical length to around 3 metres when multi-gigabit transfer rates are desired. This length, of course, can be extended through the use of hubs or signal extenders.
That's actually shorter than the USB2 recommendation of 15 feet. But it's still pretty impressive considering the improvement in speed. At a certain point you run up against the fundamental limitations of pushing electrons through wire. Using fiber can work around that but the fragility of such cabling makes it very unsuitable for the kind of use a game console would see. Not that an in-wall extender of some sort couldn't be engineered. Just as a 'drape it across the floor' cable, fiber is not ideal.