Highlights
  • Host Bus: PCIe x4 (x2 mode) Gen 3
  • 2-port USB 3.1 Host Controller (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
    • Type C Receptacle, USB IF TID 4660 & Std-A Receptacle, USB IF TID 360000145
    • Supports Multiple INs function
      • It improves the efficiency of the data transfer on its USB port, when host connecting to USB 3.1 Gen 2 Hub with several USB 3.1 Gen 1 devices
  • USB Bus Power
    • The Vbus of Std-A port has a 2.0A (70mΩ on-resistance) Single Channel Current-limited Power Switch (UL File Number E322375) for protection
    • The Vbus of Type C port has a 3.4A (56mΩ on-resistance) Single Channel Current-limited Power Switch (UL File Number E232223) for protection
  • Supports Low Profile PCI Form Factor (S-BR-00194-27-1020)
Introduction

U31-PCIE2XG323 is a 2-port USB 3.1 Gen 2 (10Gbps) to PCIe x4 (x2 mode) Gen 3 Host Card.
U31-PCIE2XG323 is designed with the new generation Universal Serial Bus XHCI host controller, bridging PCI Express to USB 3.1 Gen 2, compliant with USB 3.1 Specification Revision 1.0 and Intel eXtensible Hot Controller Interface specification revision 1.1.

U31-PCIE2XG323 supports two USB 3.1 Gen 2 (10Gbps) ports and perform trusting high speed bandwidth with PCIe Gen 3 x2 supporting. It also supports backward compatible with legacy USB function and devices, compliant with UASP (USB Attach SCSI Protocol) Revision 1.0, supporting the XHCI debug capability.

U31-PCIE2XG323 also supports the Multiple INs feature to achieve fully utilization rate of 10Gbps data rate, taking advantage of the available bandwidth of USB 3.1 Gen 2 bus.
Technical Specifications
PCIe Host Bus
  • Support PCI Express Gen 3 x2
  • Support high 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 PCI Bus Power Management Interface Specification Revision 1.2
  • Compliant with PCI Local Bus Specification Revision 3.0
  • Integrate Spread Spectrum Controller for PCI Express interface
  • Overclock capability on PCI Express bus
USB Features
  • 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
Number of USB Ports
  • Two USB 3.1 Cable Ports
    • Type C Receptacle, USB IF TID 4660
    • 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 Bus Power Input

  • USB bus power (5V) is Step-Down from 12V and the 12V may from the following source (A or B): 

    • A. From PCIe Edge Finger
    • B. From Power Connector (IDE 4-pin or 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.

Operating System Requirements
  • Inbox driver for Windows 8 later, Linux (kernel 3.x.x later)
Physical Dimensions
  • 64.4mm(H)x81mm(L)
  • NW: 47.4g
Certifications
  • CE Test: Pass
  • UKCA Test: Pass
  • FCC Test : Pass
  • VCCI Test: Pass
  • RCM Test: Pass

      
Optional Accessories
  • Low Profile PCI Bracket
    • S-BR-00194-27-1020