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Click to enlarge PEXUSB312A3
PEXUSB312A3  StarTech.com ®  
StarTech.com 2-Port USB PCIe Card 10Gbps/port - USB 3.2 Gen 2 Type-A PCI Express 3.0 x2 Host Controller Expansion Card - Windows/Linux - 2-port USB PCIe card - ASM3142 host controller for 2x USB-A ports up to 10Gbps/port - USB 3.1/3.2 Gen 2 PCI Express 3.
Type: USB Adapter
Condition: New Retail Box (Only available for shipment within the Continental United States)
Our Price: $58.45
Final Price: $58.45
Quantity: of 7 available for Special Order  
Quantities greater than what is in stock will need to be back-ordered.
** This item is a SPECIAL ORDER item and does not include Express Technology's standard warranty and terms. Click here to review our complete Special Order Policy & Terms.
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Inventory updated on date: May 08, 2024 1:00:00 AM

Product Details for PEXUSB312A3
PEXUSB312A3: StarTech.com 2-Port USB PCIe Card 10Gbps/port - USB 3.2 Gen 2 Type-A PCI Express 3.0 x2 Host Controller Expansion Card - Windows/Linux - 2-port USB PCIe card - ASM3142 host controller for 2x USB-A ports up to 10Gbps/port - USB 3.1/3.2 Gen 2 PCI Express 3.

Technical Details
Package Contents
  • USB Adapter
  • 1x Low-Profile Bracket
  • 1x Quick Start Guide
  • 1x Full-Profile Bracket (Pre-Installed)
Host Interface PCI Express x4
Product Type USB Adapter
Manufacturer Part Number PEXUSB312A3
Manufacturer Website Address http://www.startech.com
Marketing Information

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.

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).

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.

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.

More from the Manufacturer

Packaged Quantity 1
Platform Supported

PCLinuxMac
Limited Warranty Lifetime
Weight (Approximate) 2.80 oz
Form Factor Plug-in Card
Length 4.3"
Manufacturer StarTech.com
Product Name USB Adapter
Brand Name StarTech.com
Operating System Supported














Windows 7Windows 8Windows 8.1Windows 10Windows 11Windows Server 2012 R2Windows Server 2016Windows Server 2019Windows Server 2022Mac OS X 10.13 High SierraMac OS X 10.14 MojaveMac OS X 10.15 CatalinaMac OS X 11.0 Big SurMac OS X 12.0 MontereyMac OS X 13.0 VenturaLinux 3.5
Country of Origin China
Height 0.7"
Width 4.7"
Environmentally Friendly Yes
Total Number of USB Ports 2
Number of SATA Ports 1
UASP Support Yes
Product Color Black
Number of USB 3.2 Ports 2

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