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Holiday Gift Guide Startech.com 4 Port Pci Express (pcie) Superspeed Usb 3.0 Card Adapter W/ 2 Dedicated 5gbps Channels - Uasp - Sata / Lp4 Power Massive 75% Savings [KMiJ4blk]

$22.99 $73.99 -69%

InternalHost interface: PCIeOutput interface: USB 3.2 Gen 1 (3.1 Gen 1)5 Gbit/sAdd four USB 3.0 (USB 3.2 Gen 1) ports with two independent channels, LP/SATA power, and charging support to your PC through a PCI Express slotThe PEXUSB3S42V 4-Port PCI E

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Holiday Gift Guide Startech.com 4 Port Pci Express (pcie) Superspeed Usb 3.0 Card Adapter W/ 2 Dedicated 5gbps Channels - Uasp - Sata / Lp4 Power Massive 75% Savings [KMiJ4blk]

  • Internal
  • Host interface: PCIe
  • Output interface: USB 3.2 Gen 1 (3.1 Gen 1)
  • 5 Gbit/s

Add four USB 3.0 (USB 3.2 Gen 1) ports with two independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot

The PEXUSB3S42V 4-Port PCI Express USB 3.2 Gen 1 Card lets you add four USB 3.2 Gen 1 ports with two dedicated 5 Gbps channels to your PCIe x4-enabled PC. This independent port architecture improves USB 3.2 Gen 1 performance by transferring data on two 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 a second host controller chipset, the transmission channel is shared across two ports rather than four. Dedicating 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 3.2 Gen 1 controller performs up to 70% faster than conventional USB 3.2 Gen 1 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 3.2 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.

Improved Performance with UASP

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.

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 3.2 Gen 1 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.

The StarTech.com Advantage

Ports & interfaces
Peripheral (Molex) power connectors (4-pin) 1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 4
Expansion card standard PCIe 2.0
Expansion card form factor Full-height / Low-profile
Output interface USB 3.2 Gen 1 (3.1 Gen 1)
Host interface PCIe
Design
Certification CE, FCC
Hot-swap Yes
Maximum cable length 3 m
Internal Yes
Features
UASP support Yes
Data transfer rate (max) 5 Gbit/s
Chipset 2 x Renesas / NEC - µPD720202
Operational conditions
Operating relative humidity (H-H) 5 - 85%
Storage temperature (T-T) -20 - 60 °C
Operating temperature (T-T) 0 - 50 °C
Technical details
Compliance certificates RoHS
System requirements
Server operating systems supported Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2
Linux operating systems supported Yes
Windows operating systems supported Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64
Weight & dimensions
Weight 90 g
Height 120 mm
Depth 167 mm
Width 15 mm
Packaging data
Package weight 200 g
Package height 39 mm
Package depth 209 mm
Package width 145 mm
User guide Yes
Manual Yes
Drivers included Yes
Logistics data
Harmonized System (HS) code 84733020

What Our Customers Say

January 28, 2026

Absolutely no complaints!

A truly outstanding value.

- Sidney T..

January 28, 2026

Absolutely no complaints!

The product's performance is simply stellar.

- Jace Barnes.

January 28, 2026

Absolutely no complaints!

No complaints whatsoever. A perfect product.

- Ronald Lee.

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