Highlights
  • Host Bus: PCIe x4 (x2 mode) Gen 2 ; Low Profile PCI Form Factor
    • Compliant with PCI Express Base Specification Revision 3.0
  • 2-port USB 3.1 Host Controller (Asmedia ASM1142, USB IF TID 5080000000)
    • Compliant with Universal Serial Bus 3.1 specification Revision 1.0
    • Compliant with Intel’s eXtensible Host Controller Interface (xHCI) specification Revision 1.1
    • Type C Receptacle, USB IF TID 5200000033 & Std-A Receptacle, USB IF TID 360000145
  • Compliant with USB Power Delivery Specification Revision 2.0
    • Supports Profiles (5V/3A , 12V/3A)
Introduction

U31-PCIE2XG221 is a 2-port USB 3.1 to PCI Express x4 (x2 mode) Gen 2 Host Card w/ PD 2.0.

The U31-PCIE2XG221 is an Universal Serial Bus 3.1 host controller, compliant with Intel eXtensible Hot Controller Interface specification revision 1.1, bridging PCI Express interface to two ports of USB3.1, up to 10Gbps high speed bandwidth, backward compatible with legacy USB function and devices. It can configure as PCIe x2 Gen2, compliant with UASP (USB Attach SCSI Protocol) Revision 1.0, supporting the XHCI debug capability.

The design supplies normal core power and suspend core power, supporting the driver on Windows 7, Windows 8.0, Windows 8.1 and various Linux Kernels.

Technical Specifications
PCIe Host Bus
  • Support PCI Express x2 Gen2
  • Up to 10Gbps bandwidth performance with low latency
  • Support PCI Express Link power management
  • Compliant with PCI Express Base 3.0 Specification
  • Compliant with PCI Express card Electromechanical 2.0 specification
  • Compliant with PCI Express Mini Card Electromechanical 1.2 specification
  • Compliant with Express Card Standard Revision 2.0
  • Compliant with PCI Bus Power Management Interface Specification Revision 1.2
  • Compliant with PCI Local Bus Specification Revision 3.0
  • Support overclocking capability on PCI Express interface
USB Features
  • Support two port of USB 3.1
  • Compliant with Universal Serial Bus 3.1 Specification Revision 1.0
  • Compliant with Universal Serial Bus Specification Revision 2.0
  • Compliant with eXtensible Host Controller Interface specification Revision 1.1
  • Compliant with USB Attached SCSI Protocol Revision 1.0
  • Support USB3.1 and USB2.0 Link Power Management
  • Support Control, Bulk, Stream, Interrupt, Isochronous transfer type
  • Support independent port power control
  • Support over current detection
  • Support Remote/Wakeup event
  • Backward compatible with Legacy USB function and device
  • Support the Debugport
Number of USB Ports
  • Two USB 3.1 Cable Ports
    • Type C Receptacle, USB IF TID 5200000033
    • Std-A type Receptacle, USB IF TID 360000145
USB3 cable lock mechanism
  • Provides the threaded holes for the jack-screws of USB 3.1 Plug w/Jackscrew lock Cable

USB Power Delivery

Power Delivery Specification Revision 2.0, Version 1.1

  • Supports Profiles (5V/3A , 12V/3A)

USB Bus Power Input
  • USB bus power is from PCIe 12V (Step-Down)
  • PD 12V is from Power Connector (SATA 15-pin)
Computer Platform
  • Computer with PCI Express slot ( x4, x8, x16)

    • Note:
    It can configure as PCIe x2 Gen2 .
Operating System Requirements
  • Windows 8 later, Linux (kernel 3.x.x later), Mac OS  support in-box driver.
  • USB 3.1 Host Drivers Kit (x86 and x64) for
    • Windows Vista
    • Windows 7
    • Windows server 2003
    • Windows server 2008
Physical Dimensions
  • 64.4mm(H)x81mm(L)
  • NW: 46g
Kit includes
  • U31-PCIE2XG221
Optional Accessories
  • Low Profile PCI Bracket
    • BR-00194-20-1020