Dual Profile PCI Express x1 4-Port SATA 6Gbps High Performance Host Controller Improves system performance dramatically, reduces system boot up time and improves operating system performance with demanding resource intensive applications such as graphic editing tools, gaming, media editing/streaming and more Increases your data storage on high capacity, low cost SATA HDDs Supports Port Multiplier FIS-based and Native Command Queuing (NCQ) Embedded drivers enable users to take advantage of OS commands like TRIM to extend the life of SSDs for maximum durability Works with the latest 6Gbps SATA HDDs and backwards compatible with 3Gbps and 1.5Gbps HDDs Built-in LEDs indicate power and data transfer status Installs in standard height or low profile chassis with included brackets No driver installation required