How many drives are you actually going to use? The board comes with four SATA cables, and two are 6gb/s. The 6gb/s is the maximum data transfer bandwidth. As far as i know, nothing really saturates it, but there is probably some performance to gain with the newer cables. An SSD would be more likely to see improvement with the higher bandwidth cables than a conventional hard drive.
So, two of the cables are 6 Gb/s while the other two are not?
I read an article in which they tested different SATA cables and found that they all performed roughly the same, regardless of their classification.
That said, should I probably be ok using the non 6Gb/s in my build? I'll have 3 devices:
Crucial M4 256 SSD (6Gb/s)
Seagate Caviar Black 1TB 7200 RPM (6Gb/s)
ASUS DVD+RW (non 6Gb/s)
Should I be ok using the non 6Gb/s cable on my CD/DVD drive, or am I missing out? The way it sounds, the non 6Gb/s SATA cables included with the P8Z77-V Pro should hopefully perform equally as well as the ones that are labeled as being 6 Gb/s... Can anyone confirm this?
As long as the cable is good quality, it does not really affect transfer speeds. There aren't "6 Gbps cables" etc:
The same cables and connectors used for current SATA implementations can be used to connect SATA 6Gb/s devices. SATA-IO recommends utilizing quality components to ensure data integrity and robust operation at the fast 6Gb/s transfer rate. Cables already at the threshold of 3Gb/s operating margins may experience lower performance than expected at 6Gb/s due to an increased number of resends.
http://www.pugetsystems.com/labs/articles/SATA-cables-Is-there-a-difference-97 (benchmarks to show as well)