7.1 Channel Sound Card - PCI Express, 24-bit, 192KHz

Add digital optical surround sound to your computer through PCIe


4 stars (4 reviews) |
  • Superb audio quality, with high-resolution 7.1 surround sound
  • Supports digital optical or analog audio devices through SPDIF or 3.5mm jacks
  • All ports fit in standard or small form-factor computers (low-profile brackets included), using the main card plus header bracket
Your price
€83.99 EUR excl. VAT
€102.47 EUR incl. VAT

With this 7.1-channel PCIe sound card, you can create a high-quality home theatre sound system. It offers SPDIF input and output ports which deliver crystal-clear digital optical audio, for the ultimate listening experience.

Versatile performance

The versatile sound card can be used with a variety of audio devices. And with SPDIF digital optical or 3.5mm analog output, you don’t need to worry about the connection types on your devices. You can output digital audio to your optical receiver or DAC, or analog audio to your sound system.

With up to 24-bit and 192KHz playback and recording, this 7.1 surround sound adapter card delivers high-definition audio for superb sound quality.

Simple installation

Unlike typical sound cards, this card is designed to fit in low-profile computers, making it ideal for home theatre personal computers (HTPC). It spans the multiple ports across a main card plus an innovative separate header bracket. The card is configured with standard profile brackets and includes low-profile (half-height) brackets.

The 7.1 channel surround sound card is easy to install. It’s perfect for anyone looking for a simple solution to upgrade their listening experience, such as music enthusiasts or mixing professionals.

Multiple input options

For added scalability, you can quickly connect a microphone or other recording devices to your computer through two 3.5mm stereo or SPDIF digital audio input jacks.

The PEXSOUND7CH is backed by a StarTech.com 2-year warranty and free lifetime technical support.


  • Build an inexpensive home theater PC or turn your existing desktop into a media center
  • Provide additional inputs and outputs for multiple audio sources or destinations
  • Upgrade stereo-only onboard audio in your computer

Partner Numbers

  • Ingram Micro Italy V933444
  • Esprinet Italy PEXSOUND7CH
  • Tech Data - Italy 4462172
  • UPC 065030860376


  • Windows 8 logo
  • Windows 7 logo
  • Windows 10 logo
  • Windows 11 logo
Windows® 11, 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64)


Warranty Information Warranty 2 Years
Connector(s) 1 - Connector Type(s) PCI Express x1
2 - Internal Ports MPC2 (4 pin, Audio)
IDC (10 pin, Motherboard Header)
1 - Internal Ports IDC (9 pin, USB 2.0, Motherboard Header)
2 - External Ports Toslink (SPDIF, Optical)
6 - External Ports 3.5 mm Mini-Jack (3 Position)
Environmental Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -10C to 80°C (14°F to 176°F)
Humidity 10~90% RH
Hardware Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID C-Media - CM8828
Packaging Information Package Height 32 mm [1.3 in]
Package Length 14.3 cm [5.6 in]
Shipping (Package) Weight 190 g [6.7 oz]
Package Width 17.5 cm [6.9 in]
Performance Audio Specifications 24-bit / 192KHz playback and recording

SNR: Approx 92dB (A-weighting) at front output

- Analog left / right line input
- Analog left / right microphone input
- S/PDIF digital optical input
- S/PDIF digital optical output
- 2x 10-pin header
- 9-pin header
- 2x analog CD-input header
- Front left / right analog output
- Side surround left / right analog output
- Center / subwoofer analog output
- Rear surround left / right analog output
Full Duplex Support Yes
Physical Characteristics Weight of Product 99 g [3.5 oz]
Color Green
Material Steel
Product Length 10.9 cm [4.3 in]
Product Width 18 mm [0.7 in]
Product Height 12 cm [4.7 in]
Software OS Compatibility Windows® 11, 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64)
Special Notes / Requirements System and Cable Requirements PCI Express enabled computer with an available PCI Express x1 slot or higher (x4, x8, x16)
Additional slot on your computer case if installing and using the header bracket
What's in the Box 1 - Included in Package 7.1 Channel PCI Express Sound Card with Header Bracket & 10-pin Cable
Instruction Manual
2 - Included in Package Low-Profile Brackets



15 ft Thin Toslink Digital Optical SPDIF Audio Cable

Deliver high quality optical digital sound, with no signal interference

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€6.99 EUR excl. VAT
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3.5mm 4 Position to 2x 3 Position 3.5mm Headset Splitter Adapter - F/M

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6in Stereo Audio Cable - 3.5mm Male to 2x RCA Female

Connect your computer or audio device (iPod®, MP3 Player, etc.) to a stereo with standard RCA cables

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3m White Slim 3.5mm Stereo Audio Cable - Male to Male

Listen to your iPod® / MP3 player on your car or home stereo

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6 ft 3.5mm Stereo Extension Audio Cable - M/F

Extend the connection distance between your computer and speakers by up to 6-feet

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12 ft PC Speaker Extension Audio Cable

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Product Support

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We are always ready to assist you with any questions you may have.

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Frequently Asked Questions


Before you install the device, make sure that your operating system is current (for example, the most recent service pack is installed).

  1. Download the latest drivers from the StarTech.com website at http://www.startech.com/Support. The part number and product ID are on the product packaging.

Note: Windows usually saves the files to the Downloads folder that is associated with your user account (for example, C:\Users\your_name\Downloads).

  1. After the download is complete, right-click the zip folder that you downloaded, click Extract All, and complete the instructions.
  2. Open the appropriate folder for your operating system.
  3. Right-click the Setup.exe file and click Run as Administrator.

Note: If the Run as Administrator option is not available, you might be trying to run the installer from within the zipped file. Complete the instructions in step 2 to extract the files.

  1. Complete the instructions to install the device drivers, and restart your computer when prompted to.

Your computer automatically finishes installing the driver and your device should be ready to use.


The audio format of your source media may be uncompressed (lossless). Uncompressed surround sound audio is not supported by digital (S/PDIF) connections due to bandwidth limitations. When your lossless 5.1 or 7.1 audio content is sent through the Digital S/PDIF connection, data will be lost which can result in limited 2-channel audio playback.

This issue is not an isolated limitation of this StarTech.com audio adapter, as uncompressed surround sound is universally incompatible with digital (S/PDIF) audio.

Digital (S/PDIF) audio supports:

  • 2-channel PCM audio
  • Compressed surround sound audio (Dolby Digital, DD+, DTS, DTS-ES)

Digital (S/PDIF) audio does NOT support:

  • More than 2-channels of PCM audio
  • Uncompressed surround sound audio (DD-TrueHD, DTS-Master Audio)

Playback of digital surround sound is dependent on a variety of factors, including the audio format of your source media, your playback software, and your audio receiver. Digital (S/PDIF) channel settings are managed by the source and playback devices, and cannot be manually configured like analog audio.

When you troubleshoot issues with a sound card, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Stereo audio cables

  • Speakers or headsets

  • Sound card

To test your setup components, try the following:

  • Use the stereo audio cables, speakers or headsets, and sound card in another setup to see if the problem is with the components or the setup.

  • Use a different set of stereo audio cables, speakers or headphones, and sound card in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test your cables, it is recommended that you do the following:

  • Test each cable individually.

  • Use short cables when you are testing.

When you test the speakers or headsets and sound card, it is recommended that you do the following:

To check the default playback device on a computer that is running a version of Windows XP, do the following:

  1. Click Start.
  2. Click Control Panel.
  3. Click Sound and Audio Devices.
  4. Click the Audio tab.
  5. In the Default device drop-down menu, click the sound card.

To check the default playback device on a computer that is running a version of Windows Vista or Windows 7, do the following:

  1. Click Start.
  2. Click Control Panel.
  3. Click Hardware and Sound.
  4. Click Sound.
  5. On the Playback tab, right-click the sound card and click Set as Default Device.

To check the default playback device on a computer that is running a version of Windows 8, do the following:

  1. Press the Windows key + X.
  2. Click Control Panel.
  3. Click Hardware and Sound.
  4. Click Sound.
  5. Click the Audio tab.
  6. On the Playback tab, right-click the sound card and click Set as Default Device.

How To

To confirm that Windows detects your expansion card, complete the following:

  1. Press the Windows key+R, type devmgmt.msc, and press Enter.
  2. In Device Manager, under the appropriate heading, confirm that your expansion card is listed and that there isn't an exclamation mark next to it.  For example, a USB controller card would be under Universal Serial Bus controllers.

Your expansion card is listed according to the name of the chipset. To determine the name of the chipset of your expansion card, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

(4 reviews)
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1 - 4 of 4 Reviews
(5 Stars)


By: Jay3856 - 07/01/2017
Tried two other brands which did`nt like windows ten, this one however is fantastic, worth the extra $$$`s!!!
| Helpful?
(5 Stars)

Low Budget; High Quality!

By: Hank Dussen - 08/09/2017
I don't know how they do this but this cheep 24 bit 192Khz audio card with optical in & out does the job which it has to do. I have other much more expensive ones which fail specially in Windows 10 64 bit. No symetric analog in & out but that can be solved with an extra ground loop isolater.
| Helpful?
(1 Stars)

No Windows 10 drivers - causes crashes regularly

By: TimJ - 04/24/2020
I just received this new sound card and installed in my PC, only to discover that there are no drivers available for Win10. I went ahead and installed the Win8 drivers to see if it functions, but the computer now regularly freezes/crashes with no warning. Very disappointed - I had NO issues before this sound card.
| Helpful?
Matt, Customer Support on 4/28/2020 11:40:37 AM
Hello Tim, We always try to ensure our customers have exceptional experiences with our products and we apologize for the difficulties you've had installing our PEXSOUND7CH. This card should not be crashing your computer and we want to help fix this for you. Please contact us directly at www.startech.com/support so we can investigate this issue.
(5 Stars)

great internal card

By: cbs1 - 12/16/2020
I bought this product actually two times and i,m happy ..i,m use them for playing music ... im using the analog part ..just a question to tech suport can i use spdf in-out in 192khz 24 bit???if yes it will be amazing thanks to STARTECH for this product
| Helpful?
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