Products/ Host Cards / PCIe x8 / USB 3.1 Gen 1 (USB 3.0)


Octad Channel 16-port (2-port x 8) USB 3.0 to PCI Express x8 Gen 2 Host Card

  • 5.25" ODD Form Factor
  • Host Bus: PCIe x8 Gen 2 (40.0 Gb/s)
    • Compliant with PCI Express Base Specification Revision 2.0
  • Eight independent USB 3.0 Host Controllers
    • Compliant with Universal Serial Bus 3.0 specification Revision 1.0
    • Compliant with Intel’s eXtensible Host Controller Interface (xHCI) specification Revision 1.0
    • USB 3.0 Host Controller supports two downstream ports
  • Sixteen USB 3.0 Cable Ports (A-type Receptacle)

    USB 3.0 Standard A-type lock mechanism

    • Provides USB 3.0 cable port lock mechanism

The U3X8-PCIE8XE103 is an Octad channel 16-port (2-port x 8) USB 3.0 to PCI Express x8 Gen 2 Host Card.

U3X8-PCIE8XE103 is integrated by the following three key parts (IP8X-PCIE8XG201,DU3X2-IPCIE2XG201, CB-00592).

  • IP8X-PCIE8XG201
    • Internal eight PCIe x1 to PCIe x8 Gen 2 Switch Host Card.
  • Two DU3X2-IPCIE2XG201
    • Eight PCI Express to USB 3.0 Single Chip Host Controllers (Renesas uPD720202; USB IF TID 380000043).
  • Four CB-00592

Utilizing the standard PCI Express Switch, the 16-Lane/16-Port PCI Express Switch provides the most efficient fan-out solution for integrating eight PCI Express to USB 3.0 Single Chip Host controllers into a small board design. Each USB 3.0 to PCI Express Single Chip Host controller takes advantages of 5 Gbps burst rate of 8-lane PCI Express bus in both directions and is fully compliant with PCI Express Base specification r2.0. This solution provides full PCI Express and USB 3.0 functionality and performance.

Technical Specifications


Upstream PCIe interface
  • 8-lane PCI Express
  • Throughput
    • PCIe Gen 1: 20 Gbps
    • PCIe Gen 2: 40 Gbps
Downstream PCIe interface
  • Four IOI Proprietary Dual-lane Internal PCIe Ports (PCIe-1~4)
    • 10X2_19pin Header (Pitch=2.0mm)
    • 2-Lane PCIe (Two PCIe x1)
  • Throughput of each lane
    • PCIe Gen 2: 5 Gbps
Key Features
  • Standards Compliant
    • PCI Express Base Specification r2.0 (Backwards compatible with PCIe r1.0a/1.1)
    • PCI Power Management Spec r1.2
    • Microsoft Vista Compliant
    • Supports Access Control Services
    • Dynamic link-width control
    • Dynamic SerDes Speed Control
  • High Performance
    • Non-blocking internal architecture
    • Full line rate on all ports
    • Cut-Thru latency: 160ns for Link widths of x4 to x1
    • Maximum Payload Size - 2,048 bytes
    • Read Pacing (intelligent bandwidth allocation)
    • Dual Cast
    • Dynamic Buffer Pool Architecture for faster credit updates
  • PCI Express Power Management
    • Link power management states: L0, L0s, L1, L2/L3 Ready, and L3 (with Vaux not supported)
    • Device power management states: D0 and D3hot
    • Active State Power Management (ASPM)
  • Quality of Service (QoS)
    • Two Virtual Channels (VC) per port
    • Eight Traffic Classes per port
    • Weighted Round-Robin Port & VC Arbitration

Lane Status LEDs

  • Blink: Gen 1 speed
  • Solid: Gen 2 speed
  • Upstream Lane Status LEDs
    • UPCIe LED1: Upstream x1 Status LED
    • UPCIe LED4: Upstream x4 Status LED
    • UPCIe LED8: Upstream x8 Status LED
  • Downstream Lane Status LEDs
    • LEDPE1-1: Downstream Lane 11 Status LED
    • LEDPE1-2: Downstream Lane 10 Status LED
    • LEDPE2-1: Downstream Lane 9 Status LED
    • LEDPE2-2: Downstream Lane 8 Status LED
    • LEDPE3-1: Downstream Lane 14 Status LED
    • LEDPE3-2: Downstream Lane 15 Status LED
    • LEDPE4-1: Downstream Lane 12 Status LED
    • LEDPE4-2: Downstream Lane 13 Status LED
  • SW1: PCIe Port Configuration
    • 2,4: ON 1,3: OFF
      x8,x1,x1,x1,x1,x1,x1,x1,x1 (default)
  • SW2_1~3: Select Upstream NT Port
    • OFF/ON/ON : Port 1 (default)
  • SW2_4: Non-Transparent Mode
    • OFF: Disabled NT mode (default)
    • ON: Enable
Computer Platform Requirements Desktop computer equipped with a PCIe 1.0/2.0 x8, x16 slot


PCI Express
(IOI Proprietary)
  • Two Dual-lane Internal PCIe Ports (IOI Proprietary)
    • 10X2_19pin Header (Pitch=2.0mm)
    • PCIe x2 (Two PCIe x1)
  • Throughput of each lane
    • PCIe Gen 2: 5 Gbps
  • Compliant with PCI Express Base Specification Revision 2.0
USB Features
  • Compliant with USB 3.0 Specification Revision 1.0
  • Compliant with Intel’s eXtensible Host Controller Interface (xHCI) specification Revision 1.0
  • Supports UASP (USB Attached SCSI Protocol)
  • Supports two downstream ports
  • Each USB port supporting SS/HS/FS/LS data rates (5Gbps/ 480Mbps/ 12Mbps/ 1.5Mbps)
USB Data Transfer Rate
  • Low-speed (1.5 Mbps)
  • Full-speed (12.0 Mbps)
  • High-speed (480.0 Mbps)
  • Super-speed (5.0 Gbps)
Number of Ports

Eight USB 3.0 (Standard A-type Receptacle) cable ports (Provides USB 3.0 cable port lock mechanism)

USB Bus Power Input (5V & 12V)

Either Big IDE 4-pin DC Power Connector
or/and SATA 15pin Power Connector



Octad Channel 16-port USB 3.0 Host Controllers

  • U3X8-PCIE8XE103
    • IP8X-PCIE8XG201
    • Two DU3X2-IPCIE2XG201
    • Four CB-00592


Computer Platform

For the best performance (5.0 Gbps), It should be installed in a PCIe Gen 2 compliant slot in the host computer.  Most computers have PCIe Gen 2 (5.0 Gbps) throughput on x8 or x16 slots.
A PCIe Gen 1 compliant slot reaches up to 2.5 Gbps throughput

  • Computer with PCI Express slot ( x8, x16)
Operating System Requirements
  • If OS is Windows 8 or later , there are inbox driver for Renesas USB 3.0 Host Controller. OS will detect the presence of new hardware and then install Renesas USB 3.0 Host Controller driver automatically.
  • USB 3.0 Host Drivers Kit (x86 and x64) for
    • Windows 7
    • Windows Server 2008 Release 2
Physical Dimensions of DU3X2-IPCIE4XG201
  • 5.25" ODD Form Factor
  • 146.6(W) x 42(H) x 89.5 (D) mm
  • NW: 306.5g
Kit includes


  • IP8X-PCIE8XG201
  • Two DU3X2-IPCIE2XG201
  • Four CB-00592 --- Female 19pin to Female 19pin Cable, L=600mm
Version: Date: 2012/9/28
Content: USB 3.0 Host Controller Driver Kit (x86 and x64) For Windows XP, VISTA, 7 and Server 2008 Download