Dude native smashtive. I have an SSD on a Sata 3 connection and a HDD on a Sata 2. HDD is a Sata 3 device has been benched on Marvell/Sata 2 and Sata 3. Currently on a Sata 2 connection because there was no increase in speed from Marvell and Sata 2. I have not moved my SSD from one connection to another as it is my OS drive. But I highly doubt you will be missing much speed wise. I will do a quick bench of my old SSD across each port once I have bought my new larger SSD.