STOP!!!!
What you said here is very scary!
A SATA cable just connects a single disk to a single SATA port, but you are talking about a cable to power multiple disks. It sounds like you are planning to use a power cable from Corsair on a Silverstone power supply. They are very likely to not be pin compatible and you can fry your disks!
*edit* sent user a PM about this.
*edit2* Nevermind . I see he is using a Corsair PSU with a Silverstone bracket, not a Silverstone PSU.
It's still an issue that needs to be investigated, unless he ordered specifically for his PSU model number. I've seen cables from the same brand pinned differently depending on who was the manufacturer of the specific model in question. Yes, not all brands manufacture their own stuff, and will source from different manufacturers for different models over the years.
If the cable didn't come in the box with the PSU, I'd definitely ohm it out with a multimeter to verify pin for pin compatibility.
I saw the same PSU and cable combo recommended elsewhere, and I verified via the Corsair website as well (the PSU is a type 3, and the cable is marked compatible with all Corsair's type-3 PSUs). Amended my post to include links and some formatting for clarity.