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ShopNIC & Network AdaptersStarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card - USB 3.1 Gen 2 PCI Express Type C/A Host Controller Card Adapter - USB 3.2 Gen 2x1 PCIe Expansion Add-On Card - Windows, macOS, Linux
StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card - USB 3.1 Gen 2 PCI Express Type C/A Host Controller Card Adapter - USB 3.2 Gen 2x1 PCIe Expansion Add-On Card - Windows, macOS, Linux
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StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card - USB 3.1 Gen 2 PCI Express Type C/A Host Controller Card Adapter - USB 3.2 Gen 2x1 PCIe Expansion Add-On Card - Windows, macOS, Linux

£38.22

£45.86 inc. VAT

Low Stock(83)MPN: PEXUSB311AC3
🚚 Next-day delivery £4.95
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Key Features

StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card, USB 3.1 Gen 2 PCI Express Type C/A Host Controller Card Adapter, USB 3.2 Gen 2x1 PCIe Desktop Expansion Add-On Card, Windows/macOS/Linux
Full/Low-Profile
USB adapter
PCIe 3.0 x4
USB-C 3.1 x 1 + USB 3.1 Gen 2 x 1
for P/N: S251BMU313, S251BPU313, S252BU313R

Product Overview

AI-generated summary

At ~£38 ex-VAT, this is the kind of “small win” add-on you buy when you want a couple of extra high-speed USB ports and you don’t want to pay for a full docking station or a pricier USB controller card. In day-to-day office/engineering use it’s handy for things like fast external SSDs, USB NIC adapters (where supported by your OS and device), and offloading data without creating a big bottleneck through older onboard USB headers. StarTech generally makes decent, predictable hardware, and this should drop into most Windows and Linux setups without drama.

That said, I wouldn’t treat it like a network card even though the category label says “NIC”. It’s a USB host controller, so any “network” benefit is indirect—only if your use case is a USB-based device (and your specific USB Ethernet/Wi‑Fi adapter actually works properly through that controller/OS). Also, with USB bandwidth sharing, two ports mean you need to be realistic: if you run two heavy transfers at once, you’re still sharing the underlying PCIe/USB path rather than getting independent “everything at full speed.” If your goal is genuinely network performance, you’re usually better off with a proper PCIe Ethernet card. But if you just need reliable extra 10Gbps-class USB-A/USB-C connectivity on a budget, this looks like good value.

Specifications

Ports & interfaces

Host interfacePCIe
Output interfaceUSB 3.2 Gen 2 (3.1 Gen 2)
Expansion card form factorFull-height / Low-profile
Expansion card standardPCIe 3.0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity1

Design

InternalY
Product colourRed
Mean time between failures (MTBF)2684396 h

Features

ChipsetASMedia - ASM3142
Data transfer rate (max)10 Gbit/s
UASP supportY

Operational conditions

Operating temperature (T-T)5 - 50 °C
Storage temperature (T-T)-20 - 85 °C
Operating relative humidity (H-H)20 - 80 %

System requirements

Windows operating systems supportedWindows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 IoT Enterprise,Windows 10 Pro,Windows 10 Pro x64,Windows 10 x64,Windows 11,Windows 11 x64,Windows 7,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 7 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
Mac operating systems supportedMac OS X 10.13 High Sierra,Mac OS X 10.14 Mojave,Mac OS X 10.15 Catalina,Mac OS X 11.0 Big Sur,Mac OS X 12.0 Monterey,Mac OS X 13.0 Ventura
Linux operating systems supportedY
Server operating systems supportedWindows Server 2008 R2,Windows Server 2012,Windows Server 2016,Windows Server 2019

Technical details

Sustainability complianceY
Compliance certificatesCE,RoHS

Weight & dimensions

Width81 mm
Depth120 mm
Height19 mm
Weight48 g

Packaging data

Mounting brackets includedY
Quick installation guideY
Package width170 mm
Package depth142 mm
Package height30 mm

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