Add external and internal 6 Gbps SATA 3.0 ports for high speed storage access The PEXSAT31E1 2-Port PCI Express SATA/eSATA 6 Gbps (SATA 3.0) Controller Card adds one internal SATA 3.0 (6 Gbps) and one external eSATA 3.0 (6 Gbps) port, through a single PCIe slot. Providing simple connectivity between a host computer and SATA 3.0 internal and external devices, the PCIe SATA/eSATA 3.0 adapter/controller card offers a cost-effective solution for connecting high-speed storage, such as High RPM Hard Drives , Solid State Drives (SSD), and external storage arrays, 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. Suitable for installation in slimline or small form factor computer cases, the PEXSAT31E1 offers a dual profile solution, including a low profile bracket for easy installation.