Supports SATA Rev 3.0 transfer speeds up to 6.0Gbps and backwards compatible with SATA I.II at 1.5.3.0Gbps. Port Multiplier FIS-based and Command-based switching supported. Supports RAID 0 and 1 modes. Compliant with PCI Express 2.0 standards. Uses existing SATA I.II connectors and cabling. Supports Native Command Queuing (NCQ) and ATA. ATAPI commands. Ships with a full profile bracket install, low profile included. LED headers for HDD activity LED indicators. Add two internal SATA 6Gbps port for connecting SATA rev 3.0 (6Gbps) Hard Drives. High performance internal SATA storage solution. Multimedia streaming or video editing. Perfect for multi-drive internal raid storage solutions. Height: 0.84 in. Length: 2.66 in. Width: 2.54 in.