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
Product Technical Specification
Ports & interfaces | |
Host interface | PCIe |
Output interface | USB 3.2 Gen 2 (3.1 Gen 2) |
Expansion card form factor | Full-height / Low-profile |
Expansion card standard | PCIe 3.0 |
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 1 |
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
Design | |
Internal | Yes |
Product colour | Red |
Mean time between failures (MTBF) | 2684396 |
Features | |
Chipset | ASMedia - ASM3142 |
Data transfer rate (max) | 10 |
UASP support | Yes |
Operational conditions | |
Operating temperature (T-T) | 5 - 50 |
Storage temperature (T-T) | -20 - 85 |
Operating relative humidity (H-H) | 20 - 80 |
System requirements | |
Windows operating systems supported | Windows 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 supported | Mac 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 supported | Yes |
Server operating systems supported | Windows Server 2008 R2,Windows Server 2012,Windows Server 2016,Windows Server 2019 |
Technical details | |
Sustainability compliance | Yes |
Sustainability certificates | CE,RoHS |
Weight & dimensions | |
Width | 81 |
Depth | 120 |
Height | 19 |
Weight | 48 |
Packaging data | |
Mounting brackets included | Yes |
Quick installation guide | Yes |
Package width | 170 |
Package depth | 142 |
Package height | 30 |
Package weight | 123 |
Logistics data | |
Harmonized System (HS) code | 84733020 |
Products per master (outer) case | 60 |
Master (outer) case width | 370 |
Master (outer) case length | 365 |
Master (outer) case height | 500 |
Delivery Options

Economy Delivery (UK)

Fast & Tracked by Courier (UK)
This USB 3.1 Gen 2 card lets you add one USB-C port and one USB-A port to your computer, through a PCI Express slot. It enables you to upgrade your current system by adding two USB 3.1 Gen 2 ports to your computer and giving you access to data transfer speeds up to 10Gbps per port. USB 3.1 Gen 2 (also known as USB 3.2 Gen 2x1) PCIe Add-On card supports Multiple INs, maintains optimal bandwidth even when mixed speed devices are connected.Plus, by adding one USB-C and one USB-A port to your PC, you can easily connect legacy, modern, and future USB devices, regardless of the USB connector type.USB 3.1 Gen 2 PerformanceBy adding 10Gbps USB ports to your computer, you can harness the speed of USB 3.1 Gen 2 and rest assured you're ready for both current and future high-bandwidth USB-A and USB-C devices.With higher data throughput support, this USB 3.1 PCIe card is a necessity for external drives, drive enclosures, and many other USB 3.1 peripherals. Plus, the expansion card with SATA power enables supplemental power to the USB ports (when motherboard power is insufficient) providing up to 5V 3A/15W via the USB-C port and 5V 0.9A/4.5W via the USB-A port. The card is ideal for use with high performance external storage solutions.Compatible with Older USB DevicesConnecting older peripherals isn't a problem. This versatile dual-port USB 3.1 card is backward compatible with legacy USB 3.0/2.0 devices that use the common USB Type-A port, so you can eliminate the added expense and aggravation of purchasing new devices. You can also connect older devices on the USB Type-C port using a variety of USB-C cables and adapters.Easy InstallationThe USB 3.1 card is compatible with a broad range of Windows, macOS and Linux operating systems. Plus, the high-quality card includes both standard-profile and low-profile brackets, making it easy to install in full or small form-factor PCs and servers.Faster Transfer Speeds with UASPThe card supports USB data transfer speeds of 10Gbps. But, you can experience transfer speeds up to 70% faster than conventional USB, when connected to a computer that also supports UASP. With UASP you can utilize the full potential of a SATA III SSD or HDD. UASP is supported in Windows 8, macOS (10.8 or above), and Linux.In testing, UASP performs with a 70% faster read speed and 40% faster write speed over traditional USB 3.1 Gen 2 at peak performance.At the same peak in testing, UASP also shows an 80% reduction in required processor resources.The PEXUSB311AC3 is backed by a StarTech.com 2-year warranty and free lifetime technical support.
The StarTech.com Advantage
- HIGH PERFORMANCE: USB 3.1 Gen 2 or USB 3.2 Gen 2x1 PCIe Add-On card supports Multiple INs, maintains max bandwidth even when mixed speed devices are connected; 10Gbps per port; 1x USB-A & 1x USB-C
- POWER: Expansion card w/ SATA power supplies supplemental power to the USB ports (when motherboard power is insufficient) providing up to 5V 3A/15W via the USB-C port & 5V 0.9A/4.5W via the USB-A port
- MAX PERFORMANCE WITH USB DEVICES: 2-port USB-A & USB-C PCIe card adapter supports USB Attached SCSI Protocol (UASP) optimizing USB performance w/ external storage devices like SSDs, HDDs, NVMe drives
Ports & interfaces | |
Host interface | PCIe |
Output interface | USB 3.2 Gen 2 (3.1 Gen 2) |
Expansion card form factor | Full-height / Low-profile |
Expansion card standard | PCIe 3.0 |
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 1 |
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
Design | |
Internal | Yes |
Product colour | Red |
Mean time between failures (MTBF) | 2684396 |
Features | |
Chipset | ASMedia - ASM3142 |
Data transfer rate (max) | 10 |
UASP support | Yes |
Operational conditions | |
Operating temperature (T-T) | 5 - 50 |
Storage temperature (T-T) | -20 - 85 |
Operating relative humidity (H-H) | 20 - 80 |
System requirements | |
Windows operating systems supported | Windows 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 supported | Mac 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 supported | Yes |
Server operating systems supported | Windows Server 2008 R2,Windows Server 2012,Windows Server 2016,Windows Server 2019 |
Technical details | |
Sustainability compliance | Yes |
Sustainability certificates | CE,RoHS |
Weight & dimensions | |
Width | 81 |
Depth | 120 |
Height | 19 |
Weight | 48 |
Packaging data | |
Mounting brackets included | Yes |
Quick installation guide | Yes |
Package width | 170 |
Package depth | 142 |
Package height | 30 |
Package weight | 123 |
Logistics data | |
Harmonized System (HS) code | 84733020 |
Products per master (outer) case | 60 |
Master (outer) case width | 370 |
Master (outer) case length | 365 |
Master (outer) case height | 500 |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a very flexible and hassle free returns policy. If
for whatever reason you are not happy with the item purchased you can return
it to us within 12months for a refund (for unused and unopened
items) or within 30 days on opened and used items for a refund. This
applies to items purchased direct through Buykingston only.
Our 30 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items opened and used and that are returned in a resellable
condition.
Our 365 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items that remain sealed and unused.
Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;
- Headphones
- Earphones
- Custom made and designed products such as flash memory products with
custom logo’s on them. E,g USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on
non tracked items.
On unopened items 365 days.
How do i go about returning my order?
Please contact us via our contact page with
your order number where we will present you with an RMA number and returns
label.
Do i need to contact you before returning my order?
Yes, to obtain an RMA number.
Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365
day returns. Of course for faulty items we realise you may no longer have
the packaging.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
direct for assistance.
Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.