USB 3.0 controller with 4 external ports.
VLI Chipset, Data transfer rate up to 5.0Gbps, Backwards compatible with USB 2.0 & 1.1 items.
PCI-Express 1x slot (will fit 4x, 8x, 16x slot too)
SATApower connector for providing power to the controller - Note: The power connector on this card is not optional - you must plug in a power source for devices to work.
Includes driver CD.