The PEXSAT32 2-Port PCI Express SATA 6 Gbps (SATA 3.0) Controller Card offers simple connectivity between a host computer and SATA 3.0 devices - a cost-effective solution for connecting high-speed storage, such as High RPM Hard Drives and Solid State Drives (SSD), which in turn allows for easier data backups and archiving.With full support for SATA 3.0 hard drives and data transfer speeds of up to 6 Gbps, the adapter card features a native PCI Express single chipset that provides enhanced compatibility, reliability and performance for external SATA 600 MB/s storage needs.The controller card is backward compatible with SATA 2.0 devices, providing the versatility to use older storage, and features port multiplier capability with command-based and FIS-based switching for connecting multiple external hard drives to a host PC through a single external SATA connection.A dual profile solution, the SATA 3.0 controller card includes a low profile bracket for installation in slimline or small form factor computer cases.Specification- Number of Ports: 2- Raid: 1 and 0- Includes normal and low profile backplate- Max Data Transfer Rate: 6Gbp/sOS Compatability: - Windows XP, Vista, 7, 8, 8.1, 10 - Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019- Mac OS 10.6 to 10.14- Linux 3.5.x to 4.11.x LTS Versions only- Lifetime Warranty