Originally posted by Oneup
No such thing as extra sata ports, those can and will be used.
That's a very bold claim.
Can they all be used? Yes.
Will all of them be used? It depends case-by-case.
An optical drive, SSD, and HDD will take up 3 ports. Some people don't even use optical drives anymore, so that's 2 ports. Some people don't have SSDs, so maybe only 1 port will be used. Not everyone has a RAID5 setup going on inside their case.
I have 6 SATA ports and I only use 4 of them. Will all 6 of my SATA ports ever be occupied? 99% not.