StarTech.com PEXSAT34 4 Port PCI Express SATA III (6Gbps) Controller Card with eSATA - PCIe x4 Provides SATA III connectivity (6Gbps), while remaining backward compatible with SATA I (1.5Gbps) and II (3Gbps) Port Multiplier support enables multiple hard drives to be connected over a single SATA/eSATA cable Includes both a full and low profile/half-height bracket for installation into any sized desktop computer 4 internal SATA ports with 1 shared eSATA port Includes Low Profile/Half-Height installation bracket Compliant with PCI Express 2.0 standards Compliant with SATA revision 3.0, which can support up to 6Gbps of bandwidth Supports Native Command Queuing (NCQ) and ATA/ ATAPI commands