SATA III (6 Gbps) PCI Express 3.0 PCIe x 4 Slot 4x SATA Connectors 2-Year Warranty This 4-port SATA III (6 Gbps) controller enables you to add four SATA 6 Gbps Hard Drives (HDDs) or Solid State Drives (SSDs) to your computer system or server via an available PCIe x 4 card slot. The card supports SATA III & PCI-Express 3.0 Specifications.ASM1164 to Deliver 4-Port SATA 6 Gbps Performance Featuring the ASM1164 controller, this SATA card enables the connection of four high-performance SATA 6 Gbps drives with a combined total throughput of up to 16 Gbps. The SATA drives are connected via four individual SATA ports located on the card (SATA cables sold separately). Wide Compatibility The controller card is widely supported across all popular operating system platforms including Windows (7, 8, 10), mac OS (10.10 & above) & Linux (2.6.32 & above). The card also supports port multiplier, giving you the ability to connect multiple drives to a single SATA port (additional hardware required, sold separately). To further improve motherboard compatibility the card does not have a built-in RAID controller, but fully supports the use of software RAID. Plus, with support for PCIe 3.0 & SATA III Specifications this card ensures backward compatibility with previous generations (SATA I/II, PCIe 1/2) at lower performance. Hassle-Free Installation The SATA controller card features plug-&-play installation & can be installed in a full-profile or low-profile computer systems with the full-profile bracket preinstalled, & an interchangeable low-profile (half-height) bracket included.