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26 new from CDN$ 110.76

4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 2 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power

3.9 out of 5 stars 23 customer reviews
List Price: CDN$ 163.00
Price: CDN$ 110.76 & FREE Shipping. Details
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26 new from CDN$ 110.76
PCI Express
4 Ext Quad Bus
  • Add four USB 3.0 ports with four independent channels LP/SATA power & charging support to your PC through a PCI Express slot
  • Compatible with HP Pro 3500 / Lenovo ThinkCentre M93p
  • 4 Port PCIe USB 3.0 Card w/ 4 Dedicated 5Gbps Channels / USB 3.0 UASP Card / PCIe USB 3.0 Controller
  • 4 Independent Port USB 3.0 Expansion Card w/ UASP / SATA Powered USB 3.0 Adapter Card w/ up to 20 Gbps total bandwidth
  • USB 3.0 PCIe Card w/ USB Battery Charging Specification 1.2 (Apple Mode device charging only)

Frequently bought together

  • 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 2 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power
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  • CableCreation Gold (Long 16FT) Super Speed USB 3.0 Active Extension Cable, USB 3.0 Extender USB A-Male to A-Female Cable, 5Meter/16ft, Black
Total price: CDN$ 210.74
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Product details

Style: PCI Express | Size : 4 Ext Quad Bus
  • Product Dimensions: 21 x 14 x 3.8 cm ; 9 g
  • Shipping Weight: 9 g
  • Item model number: PEXUSB3S44V
  • ASIN: B00HJZEA2S
  • Date first available at Amazon.ca: Jan. 9 2014
  • Average Customer Review: 3.9 out of 5 stars 23 customer reviews
  • Amazon Bestsellers Rank: #8,726 in Electronics (See Top 100 in Electronics)

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Product description

Style:PCI Express  |  Size :4 Ext Quad Bus

Amazon.ca Product Description

4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels
4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels
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Add four USB 3.0 ports with four independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot

The PEXUSB3S44V 4-Port PCI Express USB 3.0 Card lets you add four, dedicated 5 Gbps USB 3.0 ports to your PCIe x4-enabled PC. This independent port architecture improves USB 3.0 performance by transferring data on four individual channels to your computer, giving you faster file transfers.

Increase the efficiency of your USB 3.0 devices with four dedicated bus channels

When multiple devices are connected, traditional single bus USB 3.0 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.

Power high-powered USB devices as necessary, with the optional LP4 or SATA power connector

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).


Write / read speed comparison
Write / read speed comparison
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Improved Performance with UASP

In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.0 at peak performance.

CPU utilization comparison
CPU utilization comparison
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UASP is supported in Windows 8, 8.1, Server 2012 and Linux kernel 2.6.37 or later.

At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. *Note: Test results were obtained using an Intel Ivy Bridge system, StarTech. com add-on USB 3.0 cards, a UASP-enabled StarTech. com enclosure, and a SATA III solid state drive.

Supports USB Battery Charging Specification 1.2 (Apple Mode only)

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.

PCIe x4 interface compliant with PCI Express 2.0 specifications

Upgrade an older PCIe-based system to USB 3.0 connectivity and UASP support to fully utilize USB 3.0 devices

Includes a Low Profile/half-height installation bracket

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.

Look for StarTech.com Branded Packaging to ensure you are getting a genuine StarTech.com product
Packaging image
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Avoid fraudulent products

Look for StarTech. com Branded Packaging to ensure you are getting a genuine StarTech. com product.

From the Manufacturer

The PEXUSB3S44V 4-Port PCI Express USB 3.0 Card lets you add four quad bus USB 3.0 ports to your PCIe x4-enabled PC. Quad 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 four host controller chipsets, each port operates on a separate independent transmission channel. Allocating 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 3.0 controller performs up to 70-Percent 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 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. Backed by a StarTech.com 2-year warranty and free lifetime technical support.

From the manufacturer

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Customer Questions & Answers
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Customer reviews

Top customer reviews

4.0 out of 5 starsPurchased for room-scale oculus setup - works great.
ByInvictuson April 22, 2017
Style Name: PCI Express|Size: 4 Ext Quad Bus|Verified Purchase
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0Comment| 2 people found this helpful. Was this review helpful to you?YesNoReport abuse
2.0 out of 5 starsPort orientation is a headache
BySome7hing0riginalon July 29, 2017
Style Name: PCI Express|Size: 4 Ext Quad Bus|Verified Purchase
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2.0 out of 5 starsThe information provided on this card is fairly sparse. ...
ByMarcuson July 29, 2017
Style Name: PCI Express|Size: 4 Ext Quad Bus|Verified Purchase
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4.0 out of 5 starsmanual install
ByLawrence Kon August 13, 2015
Style Name: PCI Express|Size: 4 Ext|Verified Purchase
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5.0 out of 5 starsFive Stars
ByJasonon March 23, 2017
Style Name: PCI Express|Size: 4 Ext Quad Bus|Verified Purchase
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0Comment| One person found this helpful. Was this review helpful to you?YesNoReport abuse
5.0 out of 5 starsFive Stars
ByGrahamon May 31, 2017
Style Name: PCI Express|Size: 3 Ext / 1 LAN|Verified Purchase
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5.0 out of 5 starsNo more randomly disconnecting problems!
ByJL GIRARDTOP 500 REVIEWERon May 11, 2015
Style Name: PCI Express|Size: 3 Ext / 1 Int|Verified Purchase
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0Comment| One person found this helpful. Was this review helpful to you?YesNoReport abuse
2.0 out of 5 starsJust as described and worked great... Thanks
ByAmazon Customeron April 25, 2017
Style Name: PCI|Size: 4 Ext|Verified Purchase
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