STARTECH 

PEXUSB3S44V StarTech.com 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels - UASP - SATA/LP4 Power

Mfg Part Number:  PEXUSB3S44V  
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Price: $99.99 + Free Shipping
Quantity:
In Stock: 7333
Last Updated: Jul 13, 2025
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, PO and Wire.

The PEXUSB3S44V 4-Port PCI Express USB 3.2 Gen 1 Card lets you add four, dedicated 5 Gbps USB 3.2 Gen 1 ports to your PCIe x4-enabled PC. This independent port architecture improves USB 3.2 Gen 1 performance by transferring data on four individual channels to your computer, giving you faster file transfers.
When multiple devices are connected, traditional single bus USB 3.2 Gen 1 cards share your maximum bandwidth between all ports. By employing four host controller chipsets, each port operates on a separate independent transmission channel. Dedicating up to 5 Gbps to each USB port reduces performance bottlenecks, and effectively quadruples your total available to bandwidth to 20 Gbps.
Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.2 Gen 1 controller performs up to 70% faster than conventional USB 3.2 Gen 1 when paired with a (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 3.2 Gen 1 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 3.2 Gen 1 bus-powered devices (500mA for USB 2.0). The USB 3.2 Gen 1 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 3.2 Gen 1 port.
The controller card is compliant with USB 3.2 Gen 1 standards while offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the USB 3.2 Gen 1 PCIe card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
UASP is supported in Windows 8, 8.1, Server 2012 and Linux kernel 2.6.37 or later. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.2 Gen 1 at peak performance.

More from the Manufacturer

More from the Manufacturer

Main Specification
General Information
Manufacturer StarTech.com
Manufacturer Part Number PEXUSB3S44V
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name 4 Port PCIe USB Card
Packaged Quantity 1 Each
Product Type USB Adapter
Technical Information
Host Interface PCI Express x4
Media & Performance
UASP Support Yes
Interfaces/Ports
Total Number of USB Ports 4
Number of USB 3.2 Ports 4
Number of SATA Ports 1
Software
Operating System Supported Windows Server 2016
Operating System Supported Windows Server 2019
Operating System Supported Windows 11
Operating System Supported Windows 7
Operating System Supported Windows 10
Operating System Supported Windows Server 2012
Operating System Supported Windows Vista
Operating System Supported Linux
Operating System Supported Windows Server 2008 R2
Operating System Supported Windows 8.1
Operating System Supported Windows 8
Physical Characteristics
Color Family Black
Product Color Black
Form Factor Plug-in Card
Height 4.7"
Width 0.6"
Length 6.6"
Weight (Approximate) 3.20 oz
Miscellaneous
Package Contents
  • 4 Port PCIe USB Card
  • 1 x Low Profile Bracket
  • 1 x Driver CD
  • 1 x Instruction Manual
Additional Information OS Compatibility:
  • Windows® Vista, 7, 8, 8.1, 10
  • Windows Server® 2008 R2, 2012, 2012 R2, 2016, 2019
  • Linux 2.6.31 to 4.11.x LTS versions only
Platform Supported Linux
Platform Supported PC
Country of Origin China
Environmentally Friendly Yes
Warranty
Limited Warranty 2 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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