On Mon, Jan 04, 2016 at 10:17:27PM -0800, David Christensen wrote: > My goal is to use a current SATA 3.0 (6 Gbps) SSD as the system drive in > older computers that have SATA 2.0 (3 Gbps) ports and PCIe 2.0 x1 expansion > slot(s).
SATA 3.0 is backwards-compatible; you can just use the SATA 2.0 port. Of course, it'll only run at 3Gbps. Also, PCIe 2.0 x1 doesn't actually have the bandwidth for a single 6Gbps SATA port, let alone two.