Because the ODD is only a SATA II device and is capping the SATA link to 3gbit/s connection? Or is it because apple never bothered to update their software to support 6gbit/s in their ODD? Basically has anyone tried to stick a C300 or any SATA III device into the ODD SATA connector and see what kind of connection it's at? I'm planning on going with a dual HDD/SDD setup but I'd like to keep the Disk drive in the original location because it has marginally better shock protection and the nand drive in the ODD location. If the SATA III port in the ODD is software limited to SATA II connections, then I'd be forced to do the opposite :/ Anyone try it out?