Instantly add two SuperSpeed+ USB 3.1 ports to your desktop with the SUNIX USB2312 add-on card. It features two Type A USB ports that comply with SuperSpeed+ USB 3.1 standard, which provides up to 10Gbps theoretical transfer rate and maintains compatibility with legacy standards including USB 3.0, 2.0, and 1.1. It's based on PCIe 2.0 x2 interface for bottleneck-free data transfer. Over Current protection is built in on each USB port for maximum protection.

newegg
USB 3.1

Provides up to 10Gbps transfer rate for blazing fast data transfer with compatible devices.

newegg
PCI Express 2.0 x2 Host Interface

The PCI Express 2.0 x2 interface provides up to 10Gbps transfer rate to match that of USB 3.1 for uncompromising performance. User has to plug USB2312 add-on card into PCIe x16 (or x4 above) slot on the mainboard, such as graphics add-on card adopting. Due to expansion slot mechanical limitation, this card can NOT be plugged into PCIe x1 slot.

newegg
Over Current Protection

Built-in over current protection on each USB port delivers maximum protection.