StarTech.com 4-Port USB 3.0 PCI Express Card Adapter - PCIe SuperSpeed USB 3.0 Expansion Card w/ 2 Dedicated 5Gbps Channels (PEXUSB3S42V) ^Sale

INCREASED PRODUCTIVITY: The USB 3.0 expansion card adds four USB 3.0 ports with two dedicated 5 Gbps channels to your system. This independent port architecture improves USB 3.0 performance.
• ENHANCED WITH UASP SUPPORT: The USB 3.0 PCI express card adapter uses UASP technology
• UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously.
• ADDED POWER CAPABILITIES: For high-power devices, this 4-port USB 3.0 PCIe card includes an optional SATA or LP4 power connector to deliver up to 900mA per port to USB 3.0 bus-powered devices.
• MAXIMUM COMPATIBILITY: The USB 3.0 PCIe card adapter supports USB Battery Charging Specification 1.2 (Apple Mode only). It is also backward compatible with existing USB 2.0 / 1.1 devices.