USB 3.1 2-Port PCIe 4X Controller

This Addonics USB 3.1 PCIe controller is a simple and economical solution for adding the latest high speed 10 Gbps USB 3.1 port to any Desktop computers or servers. Designed to install into any PCI-Express 4X slot, the USB 3.1 port on this controller can handle data rate up to 10 Gbps on the PCIe 2.0, doubling the speed of USB 3.1.

For a complete USB 3.1 specification, please visit following link USB 3.1 document.



  • Add two USB 3.1 ports via PCI-Express (PCIe) 4-lane slot
  • Maximum 10 Gbits/sec*, twice the speed of USB 3.0 and 20 times the speed of USB 2.0
  • Supports both PCIe 1.0, 2.0 or 3.0 
  • Includes both standard height and low-profile brackets
  • Power directly from PCI-Expressd slot or via 15-pin SATA power connector
    (SATA power connection is required for providing more than 500 mA BUS power)
  • Hot swappable - drive can be removed and added without system shut down or restart
  • Capable of SuperSpeed (10 Gbps, 5Gbps), HighSpeed (480 Mbps), FullSpeed (12 Mbps), and LowSpeed (1.5 Mbps) transaction
  • Compatible with Windows 7, 8.1 10 and Windows server

* To achieve the maximum throughput, the PCI-Express slot must be version 2.0 or higher. Older Notebook with PCI-Express 1.0 will limit the speed to 5 Gbps. Performance per port may decrease if both ports are transferring data simultaneously due to the limited throughput of the PCI-Express slot. Please visit following web page for more information of PCI-Express v1.0 and v2.0

  • Two USB 3.1 Type A downstream connectors
  • 5V 2A bus power maximum on one port. The power is shared over the two ports. Maximum power also depends on amount of power connecting to the onboard 15-pin SATA power connector
  • PCIe 4 -Lane card
  • Supports PCIe 1.0, 2.0 or 3.0 motherboard
  • Compliant with PCI Express Specification 2.0
  • Compliant with Universal Serial Bus 3.1 Specification
  • Compliant with Intel eXtensible Host Controller Interface (xHCI) Specification 1.0
  • Compliant with USB Attached SCSI Protocol Specification 1.0
  • All USB ports can handle SuperSpeed (10 Gbps, 5Gbps), HighSpeed (480 Mbps), FullSpeed (12 Mbps), and LowSpeed (1.5 Mbps) transaction
  • Support any USB3.1, 3.0, 2.0 and USB1.1 devices
  • Built-in 15Pin SATA power connector support the 5V Max 1.5A bus power each USB port from system power supply
  • Chipset : ASMedia
  • Temperature: Operating 0 to 60 degree C.
  • Storage: -25 to 70 degree C.
  • Humidity: Operating 10% to 90%
  • Non Operating 0% to 95% non-condensing
  • Completely with drivers for Windows 7, 8.1, 10 and Windows Server
  • Dimensions: (W x D x H) - 40mm x 106mm x 15mm (1.57in x 4.17in x 0.59in)
  • Weight: 30g (1.06oz)
  • Storage humidity range: 5% - 95% (non condensing)
  • 1 year warranty
  • RoHS Compliant


AD2U31PX2 - (USB 3.1 2-port USB type A PCIe 2X ctrl)
Content: 2-port USB 3.1 type A female PCI-e 2X host controller, low profile bracket, user guide
Price: 29.99


Applies to: AD2U31PX2

- USB 3.1 2-Port PCIe 2X Controller

USB 3.1 2-port PCIe-2X controller
Applies to: AD2U31PX2

For Windows 7, 8.1 and 10