Sonnet Technologies Tempo 6Gb/s SATA PCIe 2.0 Drive Card for Solid State Drives (TSATA6-SSD-E2) - Adds Fast SSDs to Your SystemMounts one or two high-performance 6 Gb/s SSDs (sold separately) in your Mac Pro's, desktop PC's, or Thunderbolt expansion chassis' PCIe slot - High-Performance PCIe InterfacePCI Express 2.0 x2 host bus interface for high-performance applications - Great PerformanceData transfers speeds up to 660 MB/sec(1) - Unique Modular DesignEnables installation of a single SSD in half length card spaces, two SSDs in full length card space when extension plate is attached to the card - Optimized for Maximum Performance Over ThunderboltPerfect for use in Sonnet's Echo Express and xMac mini Server Thunderbolt expansion products