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Product specifications

StarTech.com 2-Port USB PCIe Card with 10Gbps/port - USB 3.2 Gen 2 Type-A PCI Express 3.0 x4 Host Controller Expansion Card - Add-On Adapter Card - Full/Low Profile - Windows & Linux

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StarTech 2-Port USB PCIe Card with 10Gbps/port - USB 3.2 Gen 2 Type-A PCI Express 3.0 x4 Host Controller Expansion Card - Add-On Adapter - Full/Low Profile - Windows & Linux (PEXUSB312A3)

Part PEXUSB312A3 · UPC 065030887427

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  • HIGH PERFORMANCE: 2-Port USB PCIe Card with ASMedia ASM3142 host controller (PCIe 3.0 x4) has two SuperSpeed 10Gbps USB-A ports (USB 3.2 Gen 2); Speeds up to 10Gbps/port; Upgraded version of our popular USB card PEXUSB312A2
  • MAXIMIZED USB PERFORMANCE: Add-on card supports Multiple Ins for max bandwidth when using mixed-speed devices; Supports UASP & optimized for SSDs/HDDs, NVMe, thumb drives; Supports USB 3.2 Gen 1/2.0 devices
  • POWER: USB PCI Express 3.0 expansion card w/ SATA power header supplies supplemental power to the USB ports (when motherboard power is insufficient) providing up to 4.5W (5V @ 0.9A) per USB-A port
  • COMPATIBILITY: USB PCIe adapter card installs in full or low-profile PCIe 3.0 x4 slot and up; Bracket included; Backward compatible w/ PCIe 2.0; Supports Win/Linux/macOS w/auto drivers on Win 8 & up
  • STARTECH.COM ADVANTAGE: IT professionals' choice for over 30 years; This USB-A PCI-e card for desktop is backed for life by StarTech.com, incl. free 24/5 North America based multi-lingual tech support

About this product

USB 3.2 Gen 2 (10 Gbps) | PCI-Express 3.0 | PCIe x4 Slot | USB Type-A

This PCIe USB 3.2 Gen 2 controller card installs into an available PCI-Express x4 slot in your computer and enables you to upgrade your current system by adding two SuperSpeed USB-A (10Gbps) ports.

Add two 10 Gbps USB Type-A Ports to Your Desktop Computer

The controller card enables you to connect two USB-A Gen 2 (10 Gbps) devices to your desktop computer. The USB-A ports are ideal for connecting USB devices such as external hard drives and solid state drives or powering and syncing your mobile devices. The USB-A ports provides up to 4.5W (5V/0.9A) of power per USB port, and are backward compatible with USB 3.2 Gen 1 (5 Gbps), and USB 2.0 (480 Mbsp) devices.

Note: USB 3.2 Gen 2 (10 Gbps) is also know as USB 3.2 Gen 2 (10 Gbps), and USB 3.2 Gen 1 (5 Gbps) is also know as USB 3.2 Gen 1 and USB 3.2 (5 Gbps).

SuperSpeed USB 3.2 Gen 2 (10 Gbps) Performance

The USB 3.2 Gen 2 card features an ASMedia ASM3142 host controller that utilizes x2 lanes of the PCIe 3.0 bus, making the card capable of speeds up to 10Gbps on each port, and enabling fast access to high-performance devices like NVMe drives and SSDs. The controller card supports Multiple INs to reduce bandwidth loss when multiple devices are connected, even when connected through a USB Hub (Note: The USB hub must also support this feature). The card also supports UASP for improved performance with storage devices.

Wide Installation Compatibility

This add-on card includes both full-profile and low-profile installation brackets ensuring you can install it into either a full or low-profile PCIe 3.0 x4 slot (backward compatible w/PCIe 2.0). For wide platform support the card is compatible with Windows, Linux and macOS. For hassle-free installation the drivers install automatically on computers running Windows 8 or higher. Works w/USB 3.2/3.0/2.0 devices

PEXUSB312A3 is backed by a StarTech.com lifetime warranty with free 24/5 multi-lingual North American based technical support. StarTech.com has been the IT professionals' choice for over 30 years.

Manufacturer warranty information

Lifetime

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
2
Internal SATA ports quantity
1
SATA power connector type
SATA 15-pin

Design

Internal
Yes
Product colour
Black

Features

Data transfer rate (max)
10 Gbit/s

Operational conditions

Operating temperature (T-T)
5 - 50 °C
Storage temperature (T-T)
-20 - 60 °C
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 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 13.0 Ventura
Linux operating systems supported
Yes
Server operating systems supported
Windows Server 2012 R2, Windows Server 2016, Windows Server 2019

Weight & dimensions

Width
120 mm
Depth
110 mm
Height
19 mm
Weight
78 g

Packaging data

Mounting brackets included
Yes
Quick installation guide
Yes
Package width
216 mm
Package depth
146 mm
Package height
35 mm
Package weight
142 g

Logistics data

Harmonized System (HS) code
84733020
Products per master (outer) case
40 pc(s)
Master (outer) case width
452 mm
Master (outer) case length
377 mm
Master (outer) case height
317 mm

Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License

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