SATA Card 6 Port (NOT compatible PCIe x1 slot, please note!) SATA Card PCI-e 4x 6 * SATA III (6 Gbps) ports through PCI Express x4 Fully compliant with SATA 3.0 specifications and backward compatible with SATA I/II (1.5/3.0Gbps) drives Compliant with PCI Express 3.0 standards Port Multiplier Command-based switching supported Natively supported single chipset design Support Native Command Queuing (NCQ) Support SSC for both PCIe and SATA Includes Low Profile/Half-Height installation bracket Note: Please do NOT connect system disk, only work with extend partitions!