This time I won't put the things complex. I just received a promotion advertisement email from the vendor from whom I bought my gadgets once. Attracted by its great sale, I bought this USB 3.0 SATA converter used with my SATA drives at home with my personal Window XP, which has no built-in SATA connect itself. All the things went smooth. The question is that when I monitor the same environment on the MAC in office, it can not be totally recognised . I have no idea at all. Maybe someone can tell me what is wrong ?