To answer my own question, indeed, this is the correct SATA Adapter.
Since I could not get any answer from Sony support Belgium, I ordered it and tried it, and it worked...
SHAME ON YOU SONY for not providing me any support on this and also for charging me 5 euros on your support line, just to tell me that you do not support this kind of questions.
Sony customer support service ******, at least here in Belgium...