Startech.com PEXUSB3S42V

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... moreprocessed 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.

Supports USB Battery Charging Specification 1.2 (Apple Mode only) Backward compatible with USB 2.0 and USB 1.0/1.1 devices Optional LP4 or SATA power connector provides up to 900mA per USB port Supports up to 10 Gbps total transfer bandwidth - Up to 5 Gbps per two ports Includes a Low-Profile/half-height installation bracket UASP support acros... mores all four ports Hot-swap feature to connect/disconnect devices without powering down the system PCIe x4 interface compliant with PCI Express 2.0 specifications Fully compliant with USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications Provides four external, USB 3.0 Ports on two independent bus channels