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StarTech.com 4 Port PCI Express USB 3.0 Card w/ 2 Dedicated Channels - UASP

  • Add four USB 3.0 ports with two independent channels LP/SATA power & charging support...
  • Compatible with HP Pro 4300 and Dell OptiPlex 3010
  • 4 Port PCIe USB 3.0 Card w/ 2 Dedicated 5Gbps Channels /USB 3.0 UASP Card / USB 3.0...

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QuickFind: 616562

Mfr part code: PEXUSB3S42V

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    StarTech.com 4 Port PCI Express USB 3.0 Card w/ 2 Dedicated Channels - UASP Product Description

    The PEXUSB3S42V 4-Port Dual Bus PCI Express USB 3.0 Card lets you add four dual bus USB 3.0 ports to your PCIe x4-enabled PC. Dual bus architecture improves USB 3.0 performance by transferring data on independent channels to your computer, giving you faster file transfers. When multiple devices are connected, traditional single bus USB 3.0 cards share your maximum bandwidth between all ports. By employing a second host controller chipset, the dual bus transmission channel is shared across two ports rather than four. Allocating up to 5 Gbps for each set of two ports reduces performance bottlenecks, and effectively doubles your total available to bandwidth to 10 Gbps. Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP requires a compatible operating system). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. See our UASP test results below for further details. For high-power USB devices, this PCIe USB 3.0 card includes an optional SATA or LP4 power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.0 bus-powered devices (500mA for USB 2.0). The USB 3.0 card also supports USB Battery Charging Specification 1.2 (Apple Mode only), letting you charge compatible Apple devices (iPhones and iPads) faster than a standard USB 3.0 port. The controller card is compliant with USB 3.0 standards while offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the USB 3.0 PCIe card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.

    • Provides four external, dual bus USB 3.0 Ports
    • Supports up to 10 Gbps total transfer bandwidth - Up to 5 Gbps per two ports
    • UASP support across all four ports
    • PCIe x4 interface compliant with PCI Express 2.0 specifications
    • Optional LP4 or SATA power connector provides up to 900mA per USB port
    • Supports USB Battery Charging Specification 1.2 (Apple Mode only)
    • Fully compliant with USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications
    • Backward compatible with USB 2.0 and USB 1.0/1.1 devices
    • Includes a Low Profile/half-height installation bracket
    • Hot-swap feature to connect/disconnect devices without powering down the system

    StarTech.com 4 Port PCI Express USB 3.0 Card w/ 2 Dedicated Channels - UASP Product Reviews

    Technical Specifications

    Manufacturer Warranty

    Service & Support Limited warranty - 2 years
    Service & Support Details Limited warranty - 2 years

    Environmental Parameters

    Max Operating Temperature 50 °C
    Humidity Range Operating 5 - 85%
    Min Operating Temperature 0 °C

    Compatibility Information

    Designed For P/N: USB3S2ESATA3


    Device Type USB adapter
    Form Factor Plug-in card
    Interface (Bus) Type PCI Express x1


    Ports USB 3.0 x 4
    Connectivity Technology Wired
    Data Link Protocol USB, USB 2.0, USB 3.0
    Data Transfer Rate 5 Gbps
    Compliant Standards USB 1.1, USB 2.0, USB 3.0

    Processor / Memory

    Processor uPD720202 - NEC

    Expansion / Connectivity

    Interfaces 4 x USB 3.0 - 9 pin USB Type A ( external )


    Included Accessories Low-profile bracket
    Compliant Standards FCC, RoHS

    Software / System Requirements

    Software Included Drivers & Utilities
    OS Required Microsoft Windows Server 2008 R2, Microsoft Windows Vista (32/64 bits), Linux Kernel 2.6.31 or later, Microsoft Windows 7 (32/64 bits), Microsoft Windows XP (32/64 bits), Microsoft Windows Server 2003 (32/64-bits), Windows 8 (32/64 bits), Windows 8.1 (32/64 bits)

    Dimensions & Weight

    Width 6.7 cm
    Depth 12.1 cm
    Height 1.9 cm
    Weight 90 g

    Customer Questions

    StarTech.com 4 Port PCI Express USB 3.0 Card w/ 2 Dedicated Channels - UASP Ask an owner

    StarTech.com 4 Port PCI Express USB 3.0 Card w/ 2 Dedicated Channels - UASP Product Discussion

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