Feature:1. [M.2 to SATA3.0] Upstream PCIE3.0 X2 16Gbps, (2GByte) Downstream 5 x SATA3.0 6Gbps. (0.75GByte).2. [For JMB585 Chip] For JMB585 chip solution is used to meet the needs of users for massive data space.3. [High Speed Transmission] Using sophisticated production technology, the adapter card has high speed transmission and excellent performance.4. [Stable Operation] The adapter card adds a heat sink, has stable operation and high work efficiency.5. [Support System] Supports for OS X, for Llinux, for Windows, simple to operate and convenient to use.Specification:Item Type: Adapter CardMaterial: PCBSupport Hard Disk: Support SATA ProtocolSupport: 5 x SATA Devices, Thunder ExtensionSystem: for OS X, for Llinux, for WindowsSpeed: Sata3 (6G), the Total Bandwidth of the Bottom Layer is 16G.Package List:1 xAdapter Card 1 x Heat Sink1 x Screw1 x Screwdriver