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StarTech 2-Port USB PCIe Card, 10Gbps, with 10Gbps/port (PEXUSB312A3) | USB 3.2 Gen 2 Type-A PCI Express 3.0 x 4 Host Controller Expansion Card, Windows & Linux, Add-On Adapter, Full/Low Profile
StarTech.com

StarTech.com StarTech 2-Port USB PCIe Card

Bottom line: The StarTech.com StarTech 2-Port USB PCIe Card is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category, priced around $39.95 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$39.95

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Buy on Amazon — $39.95 Compare to similar expansion cards

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Backed by StarTech.com's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

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…

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SpecPicks Verdict

SpecPicks scored StarTech.com StarTech 2-Port USB PCIe Card using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. StarTech.com's expansion cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 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

Full Specifications

BrandStarTech.com
Style2 USB-A
Style Name2 USB-A
Unit Count1 Count
ConnectivityUSB
Model NumberPEXUSB312A3
CompatibilityMac, Linux
Built-In MediaWindows® 7, 8, 8.1, 10; Windows Server® 2012 R2, 2016, 2019; macOS 10.13 to 10.15, 11.0; Linux 3.5 or later
Mfr Part NumberPEXUSB312A3
Compatible DevicesPersonal Computers, Laptops, Servers
Hardware InterfaceUSB 3.2 Gen 2
Warranty DescriptionLifetime
Item Dimensions L x W x H3.9"L x 4.7"W x 0.7"H
Global Trade Identification Number00065030887427
Full listing titleStarTech 2-Port USB PCIe Card, 10Gbps, with 10Gbps/port (PEXUSB312A3) | USB 3.2 Gen 2 Type-A PCI Express 3.0 x 4 Host Controller Expansion Card, Windows & Linux, Add-On Adapter, Full/Low Profile

Ready to buy?

StarTech 2-Port USB PCIe Card, 10Gbps, with 10Gbps/port (PEXUSB312A3) | USB 3.2 Gen 2 Type-A PCI Express 3.0 x 4 Host Controller Expansion Card, Windows & Linux, Add-On Adapter, Full/Low Profile is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $39.95

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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StarTech 2-Port USB PCIe Card, 10Gbps, with 10Gbps/port (PEXUSB312A3) | USB 3.2 Gen 2 Type-A PCI Express 3.0 x 4 Host Controller Expansion Card, Windows & Linux, Add-On Adapter, Full/Low Profile
$39.95
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