Searching SAS controller

[naquaada]

Hello,

 

I'm searching for a for a SAS controller, but for with PCI-E x4 slot. The most controllers require PCI-E x8.

 

Of course I found the SASMegaRaid.kext, but the controllers in the kext are all PCI-E x8.

 

Greets, naquaada.