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Item#: N82E16815158225

StarTech 4 Independent Port PCI Express USB 2.0 Adapter Card Model PEXUSB400

  • PCI Express to USB Card
  • USB 2.0
  • 480/12/1.5 Mbps Data Transfer Rate
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The PEXUSB400 4 Port PCI Express USB 2.0 Adapter Card lets you connect up to 4 USB 2.0 external peripherals to your PCIe-enabled computer, with unique capability to provide full high-speed USB data transfer rates of up to 480 Mbps on each port independently.

The high-speed adapter card installs easily in a x1 PCI Express slot and with 4 independent USB 2.0 ports, can address up to 127 USB devices per port for a maximum of 508 USB devices. This adapter also includes one shared internal USB header for connecting internal USB 2.0 peripherals.

  • newegg Four Independent External USB 2.0 Ports The StarTech PEXUSB400 adds four independent external USB 2.0 ports to your PCIe-enabled computer, each port with transfer rates of up to 480 Mbps and dedicated power supply input.
  • newegg PCI Express x1 Interface The PCI Express interface effectively quadruples the amount of available computing bandwidth for faster music downloads, smoother streaming video, and lightning-fast access to mass-storage devices.

Learn more about the STARTECH PEXUSB400




PCI Express to USB Card
External USB Ports
4x USB Ports
USB 2.0
Data Transfer Rate
480/12/1.5 Mbps
Operating Systems Supported
Windows 2000/ XP(32/64bit)/ Server 2003(32/64bit)/ Vista(32/64bit)/ 7(32/64bit)/ Server 2008 R2, Linux, and Mac OS 10.4.x and up

Physical Spec

3.43" x 2.69" x 0.83"
0.11 lbs.


Four independent external USB 2.0 ports and one internal shared port
Supports High Speed USB 2.0 data transfer rates up to 480 Mbps on each port simultaneously
Backwards compatible with USB 1.1 and USB 1.0 devices
Provides up to 500mA of power per port with dedicated power supply input
Complies with Open Host Controller Specification Rev. 1.0a and Enhanced Host Controller Specifications Rev. 1.0
Compliant with PCI Express Specification 1.1
Supports Bulk/Interrupt/Isochronous USB Transfer modes
Supports up to 127 USB devices per port (requires additional USB hubs)
Plug-and-Play and Hot-Swap compatible

Manufacturer Warranty

1 year limited
1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

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Home > 
Computer Hardware > 
Computer Accessories > 
Add-On Cards > 
Item#: N82E16815158225
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