Wrong.
Original XBox has a slim 40 pin IDE drive.
To be fair, that's not really a "slim" drive, more of a custom style full size drive.
Good luck fitting that in a 1200 (I imagine it may be possible, but an actual slim drive is much smaller.)
Also, actual laptop slim drives only need 5VDC, whereas the XBox one uses 5V and 12V like a standard desktop drive.
