The Tempo 6 Gb/s SATA PCI Express 2.5″ Solid State Drive Card from Sonnet is a PCIe card that can control two SSDs and supports the OS X or Windows RAID feature. The card features a 6 Gb/s SATA controller chipset and PCIe 2.0 x2 interface to deliver read speeds up to 660 MB/s from a pair of SSDs configured as a RAID 0 set. AHCI compliance means that installing the card is simple; just attach your SSDs with the provided screws, mount the card in an available PCIe slot, and turn on your computer – the necessary drivers are installed automatically. Drive health monitoring is supported through S.M.A.R.T. data reporting. Key Features 2 x SATA Internal Connectors Ultra-Fast SATA 6 Gb/s Interface Up to 660 MB/s Data Transfer Speed Thunderbolt Compatible 2.5″ Form Factor