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Adapters - PCI-Express|Networking

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0.124 KG (Includes product packaging)
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Startech 2-Port USB PCIe Card - 10Gbps USB 3.1 Gen 2 Type-A PCI Express Host Controller Card - USB 3.2 Gen 2x1 PCIe Add-On Adapter Card - Expansion Card



  • HIGH PERFORMANCE: PCI Express host controller card has two USB-A ports with speeds up to 10Gbps per port; USB PCIe adapter card supports USB 3.1 Gen 2 or USB 3.2 Gen 2x1 standards
  • POWER: Expansion card w/ SATA power header supplies supplemental power to the USB ports (when motherboard power is insufficient) providing up to 5V 0.9A (4.5W) per USB-A port
  • MAX PERFORMANCE WITH USB STORAGE DEVICES: USB add-on card supports USB Attached SCSI Protocol (UASP) optimizing USB performance w/ external storage devices like SSDs, HDDs, NVMe drives & thumb drives
  • COMPATIBILITY: Installs in full or low-profile PCI-e 3.0 x4 slot (works w/2.0 at lower performance); Windows/Linux/macOS w/auto driver install on Windows 8 & above; Works w/USB 3.2/3.1/3.0/2.0 devices
  • STARTECH.COM ADVANTAGE: IT professionals choice for over 30 years; This 2-Port USB PCIe card is backed for 2-years by, including free 24/5 North America based multi-lingual tech support


  • Windows 7, 8, 8.1, 10
  • Windows Server 2008 R2, 2012, 2012 R2, 2016, 2019
  • Linux 3.5 to 4.11.x LTS version only


Warranty Information


2 Years


1 - Connector Type(s)

PCI Express x4

1 - Internal Ports

SATA Power (15 pin)

2 - External Ports

USB 3.1 USB Type-A (9 pin, Gen 2, 10 Gbps)


Operating Temperature

5C to 50C (41F to 122F)

Storage Temperature

-20C to 60C (-4F to 140F)


20~80% RH





USB 3.1 Gen 2

Bus Type

PCI Express

Card Type

Standard Profile (LP bracket incl.)

Port Style

Integrated on Card

Industry Standards

USB 3.1 Specification Rev. 1.0

USB Specification Rev. 2.0

PCI Express Base Specification Rev. 3.0

Intel xHCI Specification Rev. 1.1

UASP (USB Attached SCSI Protocol) Rev. 1.0

Chipset ID

ASMedia - ASM2142

Packaging Information

Shipping (Package) Weight

4.4 oz [124.0 g]

Package Length

6.8 in [17.2 cm]

Package Width

5.6 in [14.2 cm]

Package Height

1.2 in [30.0 mm]


Maximum Data Transfer Rate


Type and Rate

USB 3.1 Gen 2 - 10 Gbit/s

UASP Support


Physical Characteristics

Product Length

3.7 in [95.0 mm]

Product Width

0.5 in [12.0 mm]

Product Height

2.8 in [70.0 mm]

Weight of Product

1.8 oz [50.0 g]


OS Compatibility

Windows 7, 8, 8.1, 10

Windows Server 2008 R2, 2012, 2012 R2, 2016, 2019

Linux 3.5 to 4.11.x LTS version only

Special Notes / Requirements

System and Cable Requirements

PCI Express enabled computer or server with a PCI Express x4 slot or higher (x8, x16)

Optional SATA power connector


The maximum throughput of this card is limited by the bus interface. PCI Express Gen 1.0 max throughput is 2.5Gbps. PCI Express Gen 2.0 max throughput is 5Gbps. PCI Express Gen 3.0 max throughput is 10Gbps.

What's in the Box

1 - Included in Package

USB 3.1 card

low-profile bracket

quick-start guide

No additional files, specification sheets, guides or documentation found for product.

Warranty: 24 Month Return To Base

Full manufacturers warranty details are available at the manufacturers web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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