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

Mfg.Part: PEXUSB3S44V | CDW Part: 3235850 | UNSPSC: 43201559
Availability: In Stock
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Was $162.99
$122.99 Advertised Price
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Product Details
  • 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)
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StarTech.com 4 Port PCI Express USB 3.0 Card w/ 4 Dedicated Channels - UASP
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Product Overview

Main Features
  • 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)
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.

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.

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.

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.

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 3.0 at peak performance.

At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources.

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.

StarTech.com 4 Port PCI Express USB 3.0 Card w/ 4 Dedicated Channels - UASP is rated4.00 out of5 by5.
Rated 5 out of 5 by from Perfect for the OculusThe dedicated channels are a must for any VR device owner, or those looking to insure USB storage is performing at it's absolute best. Plug and play in Windows 10. It has been flawless.
Date published: 2018-03-02T00:00:00-05:00
Rated 5 out of 5 by from Great card but StarTech needs to update driversI have purchased 2 of these now. They work awesome BUT after a system upgrade to Ryzen 7 CPU and a ASRock mobo that has PCIE 3.0 and 2.0 ports the card will only function on the 3.0 slot. my last PC 2.0 slot was not an issue. The drivers have not been updated since 2012 and Windows default driver is no good... it sees the card but says it cant start... HELP!
Date published: 2018-12-05T00:00:00-05:00
Rated 5 out of 5 by from Works Amazing for oculus riftRecently bought this to solve my usb issues as the rift is a bit of a bandwidth hog and wow :o after installing this everything is just perfect. runs so well no issues what so ever with windows 10, the drivers install perfectly using for just over a week now and my vr experiance is so much better.its worth the price tag! :3.
Date published: 2018-05-27T00:00:00-04:00
Rated 5 out of 5 by from To big for teh backplate!Great card in terfms of specs, however, I've found that having the USB ports verticle rather than horizontal makes it impossible to actually plus a USB device in. The back plate of my PC is too narrow. Now I'm guessing the gap is industry standard so I have no idea how Startech managed to get this product out there. In order to make this work I'm going to need to physically file the back port to make the gap wider.
Date published: 2019-04-20T00:00:00-04:00
Rated 5 out of 5 by from Great card, wrong port orientationI bought this to allow additional peripherals. While the card is the best I found in terms of quality and speed, the USB port placement is terrible and it is impossible to plug anything into them unless I cut my case. An horizontal place would have been way more appropriate.
Date published: 2018-09-08T00:00:00-04:00