Startech Startech 4 Independent Port PCI Express USB 2.0 Adapter Card P2130831 Startech 4 Independent Port PCI Express USB 2.0 Adapter Card 2130831 0.60lbs 0.00 0.00 0.00
62.1600 Discontinued


Startech 4 Independent Port PCI Express USB 2.0 Adapter Card

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Rating 4| 1 reviews

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Product Description

Manufacturer Part Number: PEXUSB400

  • 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


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 an 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.

This product is backed by StarTech's Lifetime Warranty and FREE LIFETIME technical support.
The StarTech Advantage
  • Four independent/dedicated USB 2.0 ports ensure that you get the maximum performance possible from your connected USB 2.0 peripherals
  • Each port supports up to 127 USB devices, enabling a maximum of 508 connected USB peripherals
  • Backed by a StarTech lifetime warranty and free lifetime technical support

Technical Specifications

Warranty Information
InterfaceUSB 2.0
Bus TypePCI Express
Card TypeStandard Profile
Industry StandardsPCI Express One Lane 2.5Gb/s
Chipset IDASIX/MosChip - MCS9990CV
Connector Type(s)1 - PCI Express x1 Male
Internal Ports1 - IDC (4 pin; Motherboard Header) Male
External Ports4 - USB A (4 pin) Female
Type and RateUSB 2.0 - 480 Mbit/s
OS CompatibilityWindows® 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64), 2000
Windows Server® 2012, 2008 R2, 2003
Mac OS® 10.x (Tested up to 10.9)
Special Notes / Requirements
System and Cable RequirementsPentium® II class or better CPU
Unused PCI slot
Windows® 98SE or better
Physical Characteristics
Product Length2.7 in [68.4 mm]
Product Width3.4 in [87 mm]
Product Height0.8 in [21 mm]
Product Weight1.8 oz [50 g]
Operating Temperature0°C to 70°C (32°F to 158°F)
Storage Temperature-40°C to 85°C (-40°F to 185°F)
Humidity5~95% RH
Packaging Information
Shipping (Package) Weight5.3 oz [150 g]
What's in the Box
Included in Package1 - USB 2.0 PCI Express Card
1 - LP4 to SATA Cable
1 - Instruction Manual

NOTE: International/PO box deliveries are not available.

Product Specifications


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Customer Reviews
4 out of 5
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1 stars
Date Added: Thursday 06 January, 2011
Although I have not yet received this product, I got a call back from Rich at StarTech who informed me that this card is compatible with the Mac towers, OS 10.4 (10.4.11?) and up. StarTech's 7 port (1 inside, 6 outside) is not Mac compatible, but this card is.I have used (and have been a reseller of) many StarTech products and found them to be of reasonable to high quality and a good value.
Rating: [4 of 5 Stars!]
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