Startech 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

MPN PEXUSB311AC3
Manufacturer StarTech.com
QuickCode 1488718
Qty immediately available 4
Total stock 97
RRP: £50.21 inc VAT
£41.71 inc VAT
£34.76 ex VAT
Save
16%
Quantity in Cart:

Low stock, order soon!

Delivery
Order by 4:30pm UK Time (excluding weekends and Bank Holidays) for UK Mainland next working day delivery.

Shipping rates applicable only to UK Mainland Addresses and exclude Northern Ireland, Eire, Scottish Offshore, Scottish Highlands, Channel Islands and Isle of Man.

7 Working Days£2.90 Within 1 week (UK Mainland), free if order over £100 + VAT
3 Working Days£4.98 3 working days (UK Mainland)
Next Working Day£7.97 Next working day (UK Mainland)
Delivery exceptions apply

Main Specification

Product Description Startech 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
Device Type USB adapter
Form Factor Plug-in card
Interface (Bus) Type PCI Express 3.0 x4
Ports USB-C 3.1 x 1 + USB 3.1 Gen 2 x 1
Dimensions (WxDxH) 8.1 cm x 12 cm x 1.9 cm
Weight 48 g
Data Link Protocol USB 3.1
Data Transfer Rate 10 Gbps
Processor 1 x ASMedia ASM3142
Compliant Standards USB 1.1, USB 2.0, USB 3.0, USB 3.1 Gen 2
System Requirements Microsoft Windows Server 2008 R2, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Apple macOS 10.13, Microsoft Windows Server 2019, Apple macOS 10.14, Linux LTS versions only, Linux 3.5 or later, Apple macOS 10.15, Apple macOS 11.0, Microsoft Windows 7 / 8 / 8.1 / 10 / 11, Apple macOS 12.0, Apple macOS 13.0
Manufacturer Warranty 2-year warranty
Designed For P/N: S251BMU313, S251BPU313, S252BU313R

General

Device Type USB adapter
Form Factor Plug-in card
Interface (Bus) Type PCI Express 3.0 x4

Networking

Ports USB-C 3.1 x 1 + USB 3.1 Gen 2 x 1
Connectivity Technology Wired
Data Link Protocol USB 3.1
Data Transfer Rate 10 Gbps
Compliant Standards USB 1.1, USB 2.0, USB 3.0, USB 3.1 Gen 2

Processor / Memory

Processor 1 x ASMedia ASM3142

Expansion / Connectivity

Interfaces 1 x USB 3.1 - 24 pin USB-C - female 1 x USB 3.1 Gen 2 - 9 pin USB Type A - female 1 x SATA power - 15 pin Serial ATA power (internal)

Miscellaneous

Included Accessories Low-profile bracket
MTBF 2,684,396 hours
Compliant Standards WHQL, UASP (USB Attached SCSI Protocol)

Software / System Requirements

OS Required Microsoft Windows Server 2008 R2, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Apple macOS 10.13, Microsoft Windows Server 2019, Apple macOS 10.14, Linux LTS versions only, Linux 3.5 or later, Apple macOS 10.15, Apple macOS 11.0, Microsoft Windows 7 / 8 / 8.1 / 10 / 11, Apple macOS 12.0, Apple macOS 13.0

Dimensions & Weight

Width 8.1 cm
Depth 12 cm
Height 1.9 cm
Weight 48 g

Dimensions & Weight (Shipping)

Shipping Width 17 cm
Shipping Depth 14.2 cm
Shipping Height 3 cm
Shipping Weight 100 g

Manufacturer Warranty

Service & Support Limited warranty - 2 years

Environmental Parameters

Min Operating Temperature 5 °C
Max Operating Temperature 50 °C
Humidity Range Operating 20 - 80%

Compatibility Information

Designed For P/N: S251BMU313, S251BPU313, S252BU313R
Product features

USB 3.2 Gen 2 Performance

By adding 10Gbps USB ports to your computer, you can harness the speed of USB 3.2 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 3.2 PCIe card is a necessity for external drives, drive enclosures, and many other USB 3.2 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 Devices

Connecting older peripherals isn't a problem. This versatile dual-port USB 3.2 card is backward compatible with legacy USB 3.2 Gen 1/2.0 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 Installation

The USB 3.2 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 UASP

The 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 3.2 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.
Key selling points
  • HIGH PERFORMANCE: USB 3.2 Gen 2 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 | Upgraded version of our popular card PEXUSB311AC2
  • 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
  • COMPATIBILITY: Installs in full or low-profile PCIe 3.0 x4 desktop/server slot (lower performance w/PCI-e 2.0); Windows/Linux/macOS auto driver install (Windows 8 & up); Works with USB 3.2/3.1/3.0/2.0
  • THE STARTECH.COM ADVANTAGE: StarTech.com offers a 2-year warranty & free lifetime 24 hour support on this dual port USB-A & USB-C PCI Express Host Controller card w/ full & low profile bracket incl.
References

MPN: PEXUSB311AC3

What our Customers think about us!

What our Customers think about us!

Page generated at: 06/06/2026 00:42:03