Hi All, I have a late 2013 27incher with a 3TB fusion drive (that is now split). I wonder what speeds you are getting with blackmagic disk tester; for me it's ~700 read and 300+ write. I'm lead to believe that there is something going wrong with write speeds, because I also replaced the hdd with a kingston v300 ssd, and that one is also exhibiting low write speeds (480 read v. 210 write). Two ssds with significantly lower write speeds can't be a coincidence, can it? Thanks! PS: I was getting same 700/300 speeds back when it was still fusioned.