I have a few LaCie Little Big Disk Thunderbolt enclosures. They all came with SATA II (3Gbps) drives. I recently had a drive die in one and since it's out of warranty, I replaced both drives with 2 Seagate 2TB drives, which are supposedly SATA III (6Gbps). System profiler is reporting that both drive negotiated to 3Gbps speed, though. Just for grins, I tried with an OCZ Vector 150 SSD and got the same results. What does it take to get these to negotiate to 6Gbps?