My mother board contains SATA-3 ports however some are listed as S-SATA and I-SATA as shown in the manual:
I have plugged some harddrives in each of these ports and they both work fine. However I want to know the difference between these ports and I'm having trouble finding the difference between PCH and SCU for SATA. My primary concern is if one type of port is faster than another.
Can someone please explain the difference between these SATA types?