SAS Cable extensions?

Hey guys! First post and all that stuff...
To the point! I have 5 Power Mac Pros that I will be modding to real computers. I really like the drive setup though. Problem is, they're all wired into an SAS cable that is on the wrong side of the enclosure, and the cable is 6", which is too short (heh heh). Does anyone know if they make SAS cable extensions?
Also, are there any Z77 mobos out there with SAS controllers built in?
/Google has failed me so far, and I'm new to this whole modding stuff. Any help would be great :D

What kind of SAS connector is it? There are a few different ones.

Also, what are you looking for? Male to female? Male to male? Female to male? Female to female?