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Sunix USB2312 Sunix USB3.1 Enhanced SuperSpeed Dual ports PCI Express Host Card with USB-A


Sunix USB2312 Sunix USB3.1 Enhanced SuperSpeed Dual ports PCI Express Host Card with USB-A

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  • Dual-port Super Speed USB3.1 PCI Express Add-on Card
  • Supports USB data transfer rate of 10G/5G/480/12/1.5 Mbps
  • Driver support for Microsoft Windows 7, 8.x and 10 operating systems

SUNIX USB2312 is a dual-port Super-Speed USB3.1 PCI Express Add-on card, and it's compliant with the PCI Express Generation 2 (Dual-lane x2) specification for host PC system. It works up to 10 Gbps for data transfer when connecting to USB 3.1 compliant peripherals, while maintaining compatibility with existing USB peripheral devices. USB3.1 performance is 2 times faster than USB3.0 and 20 times faster than USB2.0 connectivity. With SUNIX unique technology, it can output efficient power to USB device without additional power adapter connection. SUNIX USB2312 is an ideal choice for external storage devices, MP3 players, external writer, digital cameras, webcam, networking and video devices, and all other USB devices.

  • PCI Express Base Specification Revision 2.0 dual-lane (x2).
  • Compliant with Universal Serial Bus 3.1 specification Gen2.
  • Compliant with xHCI (eXtensible Host Controller Interface) specifications Revision 1.1.
  • Supports simultaneous operation of multiple USB 3.1, 3.0, USB 2.0 and USB 1.1 devices.
  • Supports USB data transfer rate of 10G/5G/480/12/1.5 Mbps.
  • Expands dual external USB3.1 Super-Speed plus Type-A ports on the system.
  • USB port supplies maximum +5VDC / 900mA power output to USB device.
  • Built-in over current protection on each USB port.
  • Support device remote wakeup function from USB keyboard or mouse.
  • Hot-swapping feature allows connect/disconnect device without powering down the system.
  • Driver supports for Microsoft Windows 7, 8.x and 10 operation systems.
  • Certified by Electromagnetic Compatibility (CE, FCC, VCCI, C-Tick, BSMI) and RoHS approval.


  • BUS: PCI Express Spec 2.0, Dual-Lane (x2)
  • Controller: PCI Express USB3.1 Host controller, Asmedia ASM1142
  • USB Standard: eXtensible Host Controller Interface (xHCI) Rev1.1
  • IRQ & IO: Assigned by System

USB Communication

  • Interface: Universal Serial Bus 3.1 / 3.0 / 2.0 / 1.1
  • Speed:
    • Super Speed+ (10Gpbs)
    • Super Speed (5Gpbs)
    • High Speed (480Mbps)
    • Full Speed (12Mbps)
    • Low Speed (1.5Mbps)
  • No. of Port: 2-port
  • PCB Connector: USB3.1 USB Type-A port
  • Protection:
    • ±15KV IEC61000-4-2 Air Gap Discharge
    • ±8KV IEC61000-4-2 Contact Discharge


  • Source: PCIe Bus Power
  • Output Capacity: USB Type-A Port: 5VDC / Maximum 0.9A / each port

Note: Total power output capacity will be limited by system power supply.

  • Over Current Protection: USB Type-A Port: +6VDC / 1.1A / each port / PTC Fuse
  • Power Consumption: 1.1 W @ 3.3V (board only without power output to USB device)

Driver Support

  • Windows:
    • Windows 7 (X86/X64)
    • Windows 8.x / 10 (X86/X64) (Windows in-box driver)
  • Linux: Linux 2.6.31 or later (Linux OS already implemented USB3.0 driver)


  • Operation Temperature: 0 to 60°C (32 to 140°F)
  • Operation Humidity: 5 to 95% RH
  • Storage Temperature: -20 to 70°C (-4 to 158°F)

Regulatory Approvals

  • EMC:
    • EUR: CE, EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3
    • US: FCC Part 15 Class B
    • TAIWAN: BSMI: CNS13438
    • AS/NZS: C-Tick: CISPR22
  • Green: RoHS, CRoHS, WEEE

Physical Characteristics

  • PCB Dimension: 79.3 x 68.5 mm
  • Bracket: Standard 120 mm (Low Profile 80mm)
  • Bracket Space: 1