Features
•  PCI Express Base Specification Revision 2.0 dual-lane (x2)
•  Compliant with Universal Serial Bus 3.1 specification Gen2
•  Compliant with USB Attached SCSI Protocol Revision 1.0
•  Compliant with xHCI (eXtensible Host Controller Interface) specifications Revision 1.1
•  Supports simultaneous operation of multiple USB 3.1, 3.0, USB 2.0 and USB 1.1 devices
•  Supports USB data transfer rate of 10G/5G/480/12/1.5 Mbps
•  Expands dual external USB3.1 Super-Speed plus Type-A ports on the system
•  Each USB port supplies maximum +5VDC / 900mA power output to USB device
•  Power Input: 15-pin SATA CD-ROM Type Power Connector
•  Built-in over current protection on each USB port
•  Support device remote wakeup function from USB keyboard or mouse
•  Support Control, Bulk, Stream, Interrupt, Isochronous transfer type
•  Operation Temperature ：0 to 60°C (32 to 140°F)
•  Storage Temperature：-20 to 70°C (-4 to 158°F)
•  Operation Humidity：5 to 95% RH
System Requirements
• Windows 7 (X86/X64) 
• Windows 8.x / 10 (X86/X64) (Windows in-box driver)
• Linux 2.6.31 or later (Linux OS already implemented USB3.0 driver)

Package Contents
•  1 × PCI Express to 2 ports USB3.1 Host Controller Card
•  1 × User Manual
•  1 × Driver CD
•  1 × Low Profile Bracket