USB Stereo Audio Adapter External Sound Card with SPDIF Digital Audio and Stereo Mic

Add an SPDIF digital audio output and standard 3.5mm audio/microphone connections to your system through USB

Product ID: ICUSBAUDIO2D

4,8 stars (11 reviews) |
  • 96KHz / 24-bit Hi-Fi USB Audio
  • S/PDIF digital output with AC3 (Dolby Digital) and DTS pass-through support
  • 5.1 Surround Sound supported (Windows® only)
Your price
€41,99 EUR excl. VAT
€52,49 EUR incl. VAT

The ICUSBAUDIO2D External USB Sound Card lets you add an S/PDIF digital audio output and standard 3.5mm analog audio/microphone connections to your system through USB - a convenient way to bypass or replace an internal sound card without having to open the computer case.

For home-theater quality sound, the USB DAC (digital-to-analog converter) offers 96KHz / 24-bit sampling rates for both playback and recording, and a 3.5mm S/PDIF port with support for Dolby® Digital 5.1 surround sound (AC3) and DTS® pass-through (Note: 5.1 surround sound is supported in Windows® only).

This versatile USB audio adapter features an integrated 3.5mm 4-position TRRS connection for your headphones or combination headset/microphone. Also a convenient external volume control for quick adjustments, a hardware EQ switch for Bass or Treble boosting, and an LED status bar to display the current sampling rate.

Please note that the microphone input is stereo only.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

Applications

  • Connect your computer to a home theater audio receiver through S/PDIF, without opening the case
  • Add digital audio support to an Ultrabook™ or small form factor system with no internal expansion options
  • Replace or upgrade the integrated audio on a laptop or portable computer

The StarTech.com Advantage

  • Add home-theater surround sound support with the integrated digital S/PDIF output
  • Replace an internal sound card easily with a compact external USB device
  • Adjust sound output easily with external volume and EQ controls

Partner Numbers

  • Ingram DK V932860
  • UPC 065030852296

Compatibility

  • Windows 8 logo
  • Windows 7 logo
  • Windows 10 logo
  • Windows Server 2012 logo
  • Windows Server 2016 logo
  • Windows Server 2019 logo
Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016, 2019
Mac OS X® 10.6 to 10.8

Specifications

Warranty Information Warranty 2 Years
Connector(s) 1 - Connector Type(s) 3.5mm Mini-Toslink (SPDIF, Optical)
3.5 mm Mini-Jack (4 Position)
USB Type-A (4 pin) USB 2.0
3.5 mm Mini-Jack (3 Position)
Environmental Operating Temperature 0°C to 60°C (32°F to 140°F)
Storage Temperature 0°C to 70°C (32°F to 158°F)
Humidity 10~90% RH (Non-Condensing)
Hardware Bus Type USB 2.0
Chipset ID Cmedia CM6533
Indicators 1 - LED Indicators Power
3 - LED Indicators Playback / Recording sample rate
Packaging Information Package Height 32 mm [1.3 in]
Package Length 14.3 cm [5.6 in]
Shipping (Package) Weight 106 g [3.7 oz]
Package Width 17.3 cm [6.8 in]
Performance Audio Specifications 96 KHz / 24-bit Sample Rate

Approx 91dB SNR (A-weighting)

16-100ohm Headphone Drive Ability
Physical Characteristics Weight of Product 33 g [1.2 oz]
Color Black
Material Plastic
Cable Length 40.6 cm [16.0 in]
Product Length 47 mm [1.9 in]
Product Width 46 mm [1.8 in]
Product Height 16 mm [0.6 in]
Power Power Source USB-Powered
Software OS Compatibility Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016, 2019
Mac OS X® 10.6 to 10.8
Special Notes / Requirements System and Cable Requirements Available USB Port
Note 5.1 surround sound output is supported in Windows only
Microphone is stereo only.
What's in the Box 1 - Included in Package USB Stereo Audio Adapter
Software CD
Instruction Manual

Drivers/Downloads

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Diagram(s):

Firmware

Manual(s):

Datasheet

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Frequently Asked Questions

Installation

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. In the list of extracted files, right-click the Setup.exe file and click Run as Administrator.

Note: If the Run as Administrator option is not available, you might be attempting 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.
  2. After your computer restarts, connect the USB sound card to your computer.

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

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:\Documents and Settings\your_name\My Documents\Downloads).

  1. After the download is complete, right-click the zip folder that you downloaded, click Extract All, and complete the instructions.
  2. In the list of extracted files, double-click the Setup.exe file.
  3. 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.

Troubleshooting

If the USB device does not work after your computer has been in extended hibernation, it is likely that Windows has automatically turned off the USB Root hub to save power. 

The steps below outline how to configure the USB root hub to stay on during hibernation, to prevent this from happening.
 

Windows 10 / 8

  1. On your keyboard, press the Windows key + X and select Control Panel.
  2. Click Hardware and Sound, then click Power Options.
  3. Click Change plan settings for the plan you want to change.
  4. Click Change advanced power settings.
  5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
  6. Click OK to apply the setting.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

Windows 7 / Vista

  1. Click the Start button and select Control Panel.
  2. Click Hardware and Sound, then click Power Options.
  3. Click Change plan settings for the plan you want to change.
  4. Click Change advanced power settings.
  5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
  6. Click OK to apply the setting.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

Windows XP

  1. On your desktop, right-click the My Computer icon and select Properties.
  2. Click the Device Manager tab.
  3. Expand Universal Serial Bus controllers by clicking the arrow to the left of it.
  4. Right-click the first USB Root Hub device and select Properties.
  5. Click the Power Management tab.
  6. Clear the box next to Allow the computer to turn off this device to save power.
  7. Click OK to apply the setting.
  8. Repeat steps 4-7 for any remaining devices in the Universal Serial Bus Controllers section with “Root Hub” in the name.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

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

To confirm that the Mac OS detects your USB device, complete the following:

  1. Click the Apple icon.
  2. Click About This Mac.
  3. Click More Info or System Report.
  4. Under the appropriate heading, confirm that your USB device is listed and that there isn't an error. For example, a network card would be under Ethernet Cards.

You may need to refresh the System Information page after you plug in your device.  To do so, press Command R with the System Information page open.

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

Before You Buy

Four-position audio cables, connectors, and adapters come in two different wiring standards: CTIA and OMTP. The four-position standard is more commonly referred to as Tip Ring Ring Sleeve (TRRS).

All StarTech.com TRRS audio cables, connectors, and adapters conform to the CTIA standard. Some OMTP audio devices can detect which pinout is being used and switch to the CTIA standard, but not all audio devices can do this.

The CTIA pinout is as follows:

Tip Left Audio
Ring 1 Right Audio
Ring 2 Ground
Sleeve Microphone

Compliance and safety

Compliance letters

  • RoHS
    • Language: English
  • WEEE
    • Language: English

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

(11 reviews)
4,8 out of 5 stars
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1 - 11 of 11 Reviews
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(5 Stars)

Great Sound Again

By: jayengee - 01/18/2016
I had bought two new laptops running Windows 10 both, however, only had a single audio socket for a headset and not proper stereo line inputs. As a result when trying to record my old LP records I would get prominent tick, tick, tick sounds with the music quietly underneath it. I eventually found and ordered a StarTech Stereo Audio USB External Sound Card with SPDIF Digital Audio. After a bit of changing inputs and setting the input as a USB microphone and output as the laptop's normal speakers the sound is perfect again. The search was not easy as I didn't really know what to look for - many USB adapters are not stereo, and this is. I got mine from Span.com as I'm in the UK.
| Helpful?
(3 Stars)

Beware Windows 10 users

By: Christen314 - 09/05/2016
This seems like a great product but I get an error when I try to install on my windows 10 laptop. Because I cannot install the driver, I have to plug in the device then plug headphones into it in order to hear any sound. Wish they would update for windows 10.
| Helpful?
(5 Stars)

Works as you would expect

By: exrutruop - 11/15/2016
I purchased this adapter a month or so ago with the primary goal of getting an optical output out of my Windows 10 PC. It works like a charm. Obviously, I was looking to get high quality output. This too was delivered.
| Helpful?
(5 Stars)

Works great!

By: LG25 - 06/12/2017
I had trouble getting it to work with Windows 10 Pro x64, but after using chat in StarTech support, the tech used a remote admin program that worked better than TeamViewer 12 (which I use often to help friends). The whole ordeal, from first contact to end was less than 10 minutes and it's working great (and no longer generically). I think the problem was that I ran the setup.exe file in the root folder, which failed, then device manager / update driver / point to (again) root with "check subfolders" which usually works for everything, but neither worked. The tech did the dev. mgr / update driver thing, but pointed directly to "Vista x64" instead.. I think it was grabbing an XP driver when I let it choose for itself. If anyone has this problem, try pointing to Vista x64 before calling the tech. Either that or I had a corrupt .zip, although I watched the tech download the very same file I did. Either way, the sound quality is far superior to the MB.. (ASRock Killer Fatal1ty 990FX) which has a pretty decent card built in to begin with. Best $30 I spent in a while. Now to plug in my Audio-Technica HD headphones!
| Helpful?
(5 Stars)

Best sub-$100 home theater/stereo investment ever

By: Bumpin it - 11/05/2017
I run a tri-amp system that predominantly plays all channel stereo from my .flac library. I am most definitely an audiophile and there is certainly a SQ improvement using this device. I have a 3.5mm spdif to optical audio hooked straight to amp 1 as opposed to laptop media port (? Is that what it's called) to HDMI to TV then optical out to amp 1. I recommend setting the main volume to 85% player at 100% then adjust amps from there. Last night I set up Dolby Atmos for headphones free trial plugin, enabled 7.1 virtual surround and hooked my velodyne cans to this device. I was blown away with the AC3-encoded Valerian and the city of 1000 planets swarming around the headphones. Top notch product, startech. Hurry up and make an android app/plugin so I can enjoy my .flacs on my LG g5 with neutron! Also, send me some devices to review on my blog. You guys rock!
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(5 Stars)

Small with Big Features!

By: netrex - 03/20/2018
This is a very small (it surprised me, I thought it would be a lot bigger) external USB sound card with lets you have great sound for both headphones and for normal cheap microphones (more so than if you connect them to your microphone in on your motherboard sound card (or any internal sound cards I've ever tried). If you need great sound for your PC or laptop and you're on a budget (and even if you're not on a budget), this is the one for you.
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(5 Stars)

Easy to install, works very well

By: jasjr - 11/02/2018
My internal sound card died, and I decided to give this a try. The first thing I noticed was the headphones that seemed to have no bass were great. Plenty of volume. Software for customizing more would be nice, but for the quality it produces is not really needed.
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(5 Stars)

Works on MacOS 10.14 Mojave!

By: Roman Court - 06/08/2019
Connect and choose "USB Advanced Audio Device," then "Encoded Digital Audio" for AC3 output from iTunes. No apparent Safari (Plex, etc.) support, YET.
| Helpful?
Matt, Customer Support on 12/07/2019 10.51.51
We only officially support the ICUSBAUDIO2D up to Mac OS 10.8 currently, since functionality is limited on later versions
(5 Stars)

Works with macOS Mojave and macOS Catalina Beta!

By: candotude - 08/29/2019
For those trying to get optical 5.1 surround sound out of your newer Mac, this is the sound card to buy! I recently replaced my older 2011 iMac and the only thing I missed about the old computer was the built-in 3.5mm analog/digital output that supported encoded Dolby AC3/DTS 5.1 surround sound passthrough. To avoid changing out my old receiver, which still provides great surround sound, I needed an optical TOSLINK SPDIF output to play my iTunes movies. I just had to select "Prefer AC3 Passthrough" as the output in iTunes or the new Apple TV app in macOS Catalina Beta.
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(5 Stars)

Excellent Card

By: orion39 - 10/20/2019
I bought this card recently from Amazon. It resolved 2 problems that I was having with my integrated sound card. Music playback was fine with my integrated sound card, but the volume for internet news broadcast was low. Then I had to turn my volume up high and I had a problem with hum. This card resolved both problems. I would say that my volume for the internet new has been doubled. Also, StarTech has many unique components. Their assistance when inquiring about products, is outstanding.
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(5 Stars)

Works great with Win 10

By: Impressed - 11/28/2019
Have 2 of these, Microsoft for same reason made installation is tad fiddly - its pnp & then reboot to install correct drivers. USB Advanced Audio Device and USB PnP Sound device If you use portable Kodi you also need to select correct device after reboot.
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