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 Card Material: PCB Support Hard Disk: Support SATA Protocol Support: 5 x SATA Devices, Thunder Extension System: for OS X, for Llinux, for Windows Speed: Sata3 (6G), the Total Bandwidth of the Bottom Layer is 16G. Package List: 1 x Adapter Card 1 x Heat Sink1 x Screw1 x Screwdriver