According to
Corsair's cable compatibility chart your psu isn't even on the list so it looks like you can't get cables for it. You can't just use any cable because the pinouts vary from manufacturer to manufacturer (Corsair doesn't actually make any psu's) and even in the same series of psu so the wrong cable will be a expensive mistake and something will be fried.
You do have a second, cheaper option though. If you have the room in your case to hide the extra length you can use cable extensions which will work with all psu's as they only plug onto the end of the existing cables. The cable extension sets are very good value for money and many come with cable combs to tidy the cables up. OCUK's range of cable extensions can be found
here. Any brand of cable extension will fit any brand of psu so you don't need to stick with one brand. I have used Bitfenix and Phanteks extensions in the past and have had zero problems with either. If buying now I would take a good look at the Kolink Core Adept sets as they seem very good value for money seeing as they use 16awg cables (many others only use 18awg).
