Highlights
  • Host Bus: PCIe x4 Gen 3 (8.0 GT/s)
    • Compliant with PCI Express Base Specification Revision 3.0
  • Dual independent USB 3.1 Gen 2 (10Gbps) Host Controllers  (Asmedia ASM3142, USB IF TID 5080000010)
    • Compliant with Universal Serial Bus 3.1 Specification Revision 1.0
    • Compliant with Intel’s eXtensible Host Controller Interface (xHCI) specification Revision 1.1
    • Each USB 3.1 Gen 2 (10Gbps) Host Controller supports two Cable Ports (Standard-A Receptacle)
  • The Vbus of each USB Port has a 2.0A Single Channel Current-Limited Power Switch for protection
    • 2.0A (62mΩ on-resistance) Single Channel Current-limited Power Switch
    • UL File Number E328191
Introduction

The U31X2-PCIE4XG322 is a Dual Channel 4-port (Std-A) USB 3.1 Gen 2 to PCI Express x4 Gen 3 Host Card

U31X2-PCIE4XG322 is designed with Two key components.

  • 8-Lane, 3-Port PCI Express Gen 3 Switch.
  • PCI Express to USB 3.1 Single Chip Host Controller  (Asmedia ASM3142, USB IF TID 5080000010)

Technical Specifications
PCI Express
  • PCI Express 4-lane Gen 3  (8.0GT/s)
    • Compliant with PCI Express Base Specification Revision 3.1
    • Compliant with PCI Express CEM Specification Revision 3.0
    • Compliant with Advanced Configuration Power Interface (ACPI) Specification
  • Support up to 512-Byte Max Payload Size
USB Features
  • One Channel support two ports of USB 3.1
  • Up to USB 3.1 Gen 2 10Gbps
  • Compliant with Universal Serial Bus 3.1 Specification Revision 1.0
  • Compliant with Universal Serial Bus Specification Revision 2.0
  • Compliant with USB Attached SCSI Protocol Revision 1.0
  • Support Multiple INs function
  • Support USB 3.1 and USB 2.0 Link Power Management
  • Support Control, Bulk, Stream, Interrupt, Isochronous transfer type
  • Support independent port power control
  • Support overcurrent detection
  • Integrate Spread Spectrum Controller for USB 3.1 interface
  • Backward compatible with Legacy USB function and device
  • Support the Debugport
USB Data Transfer Rate
  • USB 3.1 Gen 2 (10G), USB 3.1 Gen 1 (5G), USB 2.0 (480MB)
Number of Ports
  • Four independent USB 3 Cable Ports (Std-A Receptacle, USB IF TID 360000145)
  • The Vbus of each USB Port has a 2.0A Single Channel Current-Limited Power Switch for protection (IC-S0372H-03)
    • 2.0A (62mΩ on-resistance) Single Channel Current-limited Power Switch
    • UL File Number E328191

 

USB Bus Power Input

  • 12V Step-Down to 5V from either PCIe 12V or Power Connector 12V (J1: ATA 4-pin or J2: SATA 15-pin)

    The USB Bus power (5V) are step-down from 12V and the 12V input might from either PCIe Edge Connector or Auxiliary Power Connectors (J1 & J2).
    Note:
    If the PCIe Slot can’t supply 12V current high enough then you have to attach the Auxiliary Power from either J1 (ATA 4-pin) or J2 (SATA 15-pin).

Computer Platform

Computer with PCI Express slot ( x4, x8, x16)

Note:
For the best performance, It should be installed in a PCIe Gen 3 compliant slot in the host computer.

Certifications
  • CE Test: Pass
  • UKCA Test: Pass
  • FCC Test : Pass
  • VCCI Test: Pass
  • RCM Test: Pass

      

Operating System Requirements
  • Inbox driver for Windows 8 later, Linux (kernel 3.x.x later)
  • Supporting the proprietary driver for
    • Windows 7
    • Windows server 2003
    • Windows server 2008
    • Windows server 2012
Physical Dimensions
  • 110mm(W) x 98mm[120mm](H)
  • NW: 95.2g
Optional Accessories
  • CB-00746----USB 3.1 Gen 1 / Gen 2 Std-A Plug to Micro-B Plug with two jackscrews Cable, L=1~3m
  • CB-00745---USB 3.1 Std-A Plug to Std-B Plug with two jackscrews Cable, L=1~3m
  • CB-00740----USB 3.1 Gen 1 / Gen 2 Std-A Plug to Type-C Plug with two jackscrews Cable, L=1~3m
  • U31AOCP-A0MB2---USB 3.1 Gen 1 / Gen 2 Hybrid AOC (Active Optical Cable), Std-A plug to Micro-B Plug, L=10~20m
  • U31AOCP-A0C0---USB 3.1 Gen 1 / Gen 2 Hybrid AOC (Active Optical Cable), Std-A plug to Type-C Plug, L=10~20m