Add four USB 3.0 ports -- three external ports and one internal port -- to your computer - Standard profile (low-profile installation bracket included) - Data transfer rats of up to 5 Gb/s and UASP support - Backwards compatible with USB 2.0 and USB 1.x devices - Built-in optional SATA power connector provides up to 900 mA per USB port - PCIe x1 interface compliant with PCI Express 2.0 specifications