StarTech 4-Port PCI Express USB 3.0 Card with 3 External and 1 Internal Ports
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StarTech 4-Port PCI Express USB 3.0 Card with 3 External and 1 Internal Ports

SKU: STPEXUSB3S42 MFR: PEXUSB3S42
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$45.99
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Key Features

  • Add four USB 3.0 ports (3 external, 1 internal) to your desktop with this PCIe card.
  • Experience fast data transfers up to 5 Gbps using this USB 3.0 PCI express card.
  • The internal USB port is great for securely connecting a USB dongle or flash drive.
  • Backward compatibility ensures this USB card works with older USB 2.0 and 1.1 devices.
  • Includes a low-profile bracket for installation in small form factor computer cases.
  • UASP support enhances transfer speeds, perfect for external hard drives and SSDs.
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Questions & Answers

Reviews about this item

Review Summary

2025-05-21T20:00:00

Rated 5 out of 5

Great Product for Intended Use

Needed to add a 20 Pin internal USB header to an Asus Z890M board for a 54 in 1 device on a Windows 11 Pro OS. Didn't need SATA power for good results. Unit worked perfectly with OS WHQL drivers. Took longer to unbox unit than to install. Highly recommend.

BarryL

2023-10-26T20:00:00

Rated 5 out of 5

Easy install great product!

Bought this so I could make full use of my Corsair case's 4 USB 3.0 sockets. Mounted quickly with an easy driver installation!

Deph

2023-03-22T20:00:00

Rated 5 out of 5

The most compatible USB 2.0 card

This card is the best pick when installing Windows 98 on modern hardware. Also works great in Windows 11, my expensive Razer mouse is hooked-up to this card so I can use it in Windows 98 and Windows 11 in a dual boot configuration.

OMORES

2022-10-19T20:00:00

Rated 5 out of 5

Works fine, on PCIe2 x 4 channels is 1 GB transfer

4 PCIE-2 x 4 supports the card with an external, self-powered 4-port USB 3.2 hub just fine, and one front panel USB 3.0 port. The card also has a SATA power connector attached. No dropouts, no compatibility issues with an old Intel Server board running Windows 10. Just works.

Greg T.

2022-10-19T20:00:00

Rated 5 out of 5

Works fine, on PCIe2 x 4 channels is 1 GB transfer

4 PCIE-2 x 4 supports the card with an external, self-powered 4-port USB 3.2 hub just fine, and one front panel USB 3.0 port. The card also has a SATA power connector attached. No dropouts, no compatibility issues with an old Intel Server board running Windows 10. Just works.

Greg x.

2020-03-20T20:00:00

Rated 5 out of 5

Great for external DAC

After installing it instead of motherboard's USB ports - there are stops any lags or music distortion while ASIO streaming. Very clear strong sound stream without artefacts. Really huge improvement for my SCHIIT MODI MULTIBIT.

oplacheno_1

2019-12-28T19:00:00

Rated 1 out of 5

Not wirking on Win 10(((

I Bought it one week ago, and can not install it in my lenovo shark bay with Win 10 - system dont see it at all

oplacheno

2019-10-06T20:00:00

Rated 2 out of 5

Detects as USB Type-C & Requires SATA power cable

I bought this because I needed to have an internal USB-A port that was inaccessible to users. But on every boot there is a POST error indicating "USB Type-C Card Detection Error" and that "cable is required between 12C on card and USB-C on the motherboard"... but this isn't a Type-C card (its type-A). The computer and port work fine once you continue past the error screen & reboot again. The only extra port on it is the SATA power cable. So when I get one of those I'll update to see if that fixes it.

Sri_N

2019-01-20T19:00:00

Rated 5 out of 5

Has been working great for 2 years.

Bought 2 years ago for my home built - Windows 10 Home - computer (AMD FX CPU/Gigabyte MB), to add extra USB ports. Have had no issues thus far.

Mathew

2017-08-15T20:00:00

Rated 2 out of 5

Wont work in Dell Servers

Trying to use for USB 3.1 drive dock on a backup server. The card needs power, no power leads on most Dell servers for aux power to pcie cards. The Startech USB 3.0 pcie card did not need aux power if the drive was independently powered. Request a 3.1 card that does not need aux power, even if that violates the 3.1 standard.

BillB50

2017-05-26T20:00:00

Rated 5 out of 5

Exactly what we we're needing

I am one of the " IT " guys Orthopedic Appliance Company here in Asheville NC. Our Dell server has those 2.0 USB ports. Backups being that they are encrypted we're taking 8hrs+/-. Even though backup we're scheduled after hours, it would run into the following day by a few hrs. Ordered the 3.0+ Pcie add-on card, and now complete backups are taking less than 5 and are completed before the staff returned the following morning and are able to be more productive because the local server isn't being bogged down from backups running?. 18 staff members running pervasive database applications along with remote desktop really put a strain on Everything. Best money spent.

Lewis

2017-05-10T20:00:00

Rated 4 out of 5

mostly works

The Technical Specifications are poorly written. This is physically an x4 PCie card, but it is electrically PCIe 2.0 x2. Startech should update all their PCIe card Technical Specifications with specific information like that instead of the vague and useless info currently provided. The problem with x2 is that some old computer chipsets or CPUs may treat that as x1 which would half the performance, or quarter the performance if it is a PCIe 1.0 slot. You can find other cards that use a switch chip (x4 upstream) to connect both USB and eSATA. Such a card will perform better in a x4 PCIe 1.0 slot or a slot that does not support x2. The ASM 1142 chip has a problem where it reports the connection status of my device as 5Gb/sec instead of 10 Gb/sec but the device transfers data at faster than 5 Gb/sec anyway. Sometimes I have to reconnect the device if it reports as 480 Mb/sec (USB 2.0). USB 3.1 gen 2 from an Intel Thunderbolt 3 chip does not have those problems but no-one makes a USB PCIe card using that chip.

joevt2

2017-03-18T20:00:00

Rated 1 out of 5

Great feature if I can get it to work

I wanted to add USB 3 to my HP Z800 with Win 7 Pro 64 bit but it is not working correctly. Confused as it should straight out of the box.

Pierre

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StarTech USB Card Specifications

  • Bus Type

    PCI Express

  • Card Type

    Standard Profile (LP bracket incl.)

  • Chipset ID

    VLI - VL805

  • Industry Standards

    USB 3.0 Specification Rev. 1.0
    PCI Express Base Specification Rev. 2.0
    Intel xHCI Specification Rev. 1.0

  • Interface

    USB 3.0

  • Port Style

    Integrated on Card

  • Ports

    4

  • Cable Length

    9.8' / 2.99m

  • Maximum Data Transfer Rate

    5 Gbps

  • Type and Rate

    USB 3.0 - 5 Gbit/s

  • UASP Support

    Yes

  • Connector Type(s)

    1 - PCI Express x1 Male

  • External Ports

    3 - USB Type-A (9 pin) USB 3.0 Female

  • Internal Ports

    1 - SATA Power (15 pin) Plug
    1 - USB Type-A (9 pin) USB 3.0 Female

  • OS Compatibility

    Windows 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64)
    Windows Server 2012, 2008 R2
    Linux 2.6.31 and later (tested up to 3.5)

  • System and Cable Requirements

    PCI Express enabled computer or server with an available PCI Express x1 slot or higher (x4, x8, x16)
    SATA power connector (recommended, but optional)

  • Humidity

    20-80% RH

  • Operating Temperature

    5 to 50 deg. C / 41 to 122 deg. F

  • Storage Temperature

    -20 to 60 deg. C / -4 to 140 deg. F

  • Certifications

    RoHS Complaint
    CE
    FC

  • Dimensions (H x L x W)

    4.7 x 3.4 x 0.7" / 11.94 x 8.64 x 1.78cm

  • Weight

    2.1oz / 59.53g

  • UPC Code

    065030860321

About StarTech USB Card

FEATURED REVIEWS

Has been working great for 2 years.

By Mathew

Bought 2 years ago for my home built - Windows 10 Home - computer (AMD FX CPU/Gigabyte MB), to add extra USB ports. Have had no issues thus far.

Great Product for Intended Use

By BarryL

Needed to add a 20 Pin internal USB header to an Asus Z890M board for a 54 in 1 device on a Windows 11 Pro OS. Didn't need SATA power for good results. Unit worked perfectly with OS WHQL drivers. Took longer to unbox unit than to install. Highly recommend.

Discover the power of enhanced connectivity with our 4-Port PCI Express USB 3.0 Card. This high-speed, versatile, and reliable solution offers you the ultimate in connection flexibility with three external ports and one internal port, expanding your computer's connectivity options.

Designed to fit both standard and small form-factor computers, this durable USB 3.0 card comes with a low-profile bracket included, ensuring a seamless fit in any system. With data transfer rates of up to 5 Gbps, this high-speed card supports UASP for more efficient data transfers, offering around 70% faster read speed and 40% faster write speed over traditional USB 3.0 when paired with a UASP-enabled enclosure.

This user-friendly card is easy to install with native OS support in Windows 8.1, 8, 7, and Linux kernel 2.6.31 or later, ensuring you can get up and running quickly. The built-in optional SATA power connector provides up to 900mA per USB port, ensuring reliable power for your connected devices.

Experience the convenience of having three external USB 3.0 ports at your disposal, allowing you to connect a range of devices such as tablets, external hard drives, and more. The card also features an internal USB port, perfect for securely connecting devices like flash drives inside your computer case.

Backward compatibility with USB 2.0 and 1.x devices means you won't have to worry about upgrading your existing devices, saving you both cost and hassle. Whether you're looking to enhance the connection capabilities of your PCI Express enabled computer or server, or connect external hard drives, tablets, smartphones, CD/DVD drives, webcams, or game controllers to your computer, this 4-Port PCI Express USB 3.0 Card is the perfect solution.

StarTech USB Card Features

  • High-speed 4-Port PCI Express USB 3.0 Card for enhanced computer connectivity
  • Includes three external and one internal port for versatile device connection
  • Backward compatible with USB 2.0 and 1.x devices for cost-effective use
  • Features UASP support for efficient data transfers, with speeds up to 5 Gbps
  • Easy installation with native OS support in Windows 8.1, 8, 7, and Linux kernel 2.6.31 or later
  • Suitable for standard and small form-factor computers, with low-profile bracket included

Warranty Information

This product has a limited warranty of 24 months.

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Key Features

  • Add four USB 3.0 ports (3 external, 1 internal) to your desktop with this PCIe card.
  • Experience fast data transfers up to 5 Gbps using this USB 3.0 PCI express card.
  • The internal USB port is great for securely connecting a USB dongle or flash drive.
  • Backward compatibility ensures this USB card works with older USB 2.0 and 1.1 devices.
  • Includes a low-profile bracket for installation in small form factor computer cases.
  • UASP support enhances transfer speeds, perfect for external hard drives and SSDs.

What's in the box:

  • StarTech 4-Port PCI Express USB 3.0 Card with 3 External and 1 Internal Ports
  • Low-Profile Bracket
  • Driver CD
  • Instruction Manual
  • StarTech 2 Year Warranty