StarTech.com 2 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card w/ SATA Power – Add two USB 3.0 ports to your desktop computer through a PCI Express slot – PCIe USB 3.0 Controller Card – 2Port PCI Express USB 3.0 Adapter – SuperSpeed 5 Gbps USB 3 PCIe Card – Dual Profile PCI Express USB 3.0 Card with SATA Power Connector ADAPTER CARD
The PEXUSB3S23 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 ports to any PCI Express-enabled computer system. The USB card requires SATA power for functionality, and delivers 900mA of power per port to USB 3.0 bus-powered devices (500mA for USB 2.0) via your computers SATA power connector. The PCIe USB 3.0 adapter is compliant with USB 3.0 standards for data transfer speeds up to 5 Gbps, while still offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the controller card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers. Backed by a StarTech.com 2-year warranty and free lifetime technical support. More from the Manufacturer

Startech PEXUSB3S23

Features

Provides two external USB 3.0 connections

Supports data rates up to 5 Gbps

SATA power connector (required) provides up to 900mA per USB port

Compliant with PCI Express 2.0 specifications

Fully compliant with USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications

Backward compatible with USB 2.0 and USB 1.0/1.1 devices

Includes a Low Profile/half-height installation bracket

Guides & Documents

Brochure