I looked at the port on my 360 slim, and it just looks like a regular old internal sata notebook hard drive connection.
Is there anything to stop someone from buying a notebook hard drive and formatting it in the xbox menu? Does microsoft limit the size on the internal hard drive as well? I know flash storage is limited to 16GB, but what about the internal? Has anyone tried this? I hope it's OK to ask about this.
Not worth risking getting banned from LIVE in my opinion.
Switch: 6200-8149-0919 / Wii U: maximumzero / 3DS: 0860-3352-3335 / eBay Shop
As far as i know in the googling I did on the subject a month or two ago, no one has been banned for doing this. Even if microsoft could tell, they probably wouldn't ban you, because...why? There's no piracy involved here or anything. You can google around pretty easy for a more definitive answer.
SniperGuyGaming on PSN / SniperGuy710 on Xbone Live
There is a program to duplicate said info from official HDDs to certain Western Digital HDDs, but some code is copyrighted.