The pexmsata343 3 port pci express 20 sata card with hyperduo adds an internal msata ssd solid state drive slot plus three internal sata iii ports to your computer through a pcie x2 slot adding multiple 6 gbps internal connections that enable you to improve the overall speed and storage capacity of your computer by connecting high performance ssds and hard drives featuring hyperduo technology the sata card offers ssd auto tiering which lets you balance the performance advantages of ssd sto