Features: High Compatibility and flexibility: This PCI Express to SATA3.0 expansion controller card supports a variety of PCI-E slot specifications (X1/X4/X8/X16), making it easy to adapt to a variety of motherboard and computer configurations, greatly increasing installation flexibility and compatibility. At the same time, it is compatible with a variety of operating systems, including meeting the needs of different users. Dual port design, high performance data transfer: With two separate SATA III 6Gb/s ports, users can connect two SATA devices, such as hard drives (HDDS), solid state drives (SSDS) or optical disc drives (CDS/DVDS) at the same time, easily enabling storage space expansion or data backup, ensuring fast data transfer capabilities and improving overall system performance. Easy to install and configure: The product is new and high quality, and the installation process is simple and quick. The mode switching function is specially designed, so that the system can be switched to NO Boot mode to avoid boot problems during the installation, and then switched back to AHCI or IDE mode after the installation is complete. If the device is used only as a data disk, you can disable the NO Boot mode and use the device without any additional Settings. Stability and reliability: The high quality main control chip ensures the stability and reliability of data transmission, reduces the risk of system crash or data loss, and escorts the data security of users. Small design, adaptable: Considering the compactness of modern chassis, this expansion card is designed to be relatively small and can be easily installed in a small chassis without taking up too much space, providing more possibilities for the user's hardware layout. Specifications: Color: Black Main control chip: ASM1061 Bus interface: PCI-E (1×, 4×, 8×, 16×) Product interface: 2 SATA interfaces Modes: AHCI Boot, NO Boot, IDE Boot Support system: For Windows XP, for Windows 2003, for Windows Vista, for Windows 7, for Windows 8, for Windows 10, for Mac, for Linux, etc. Package Included: 1 x Expansion Card 1 x Low Profile Bracket