How to Convert a 3.5mm Headphone Jack to USB on Windows 10

The short answer: to use headphones with a 3.5mm plug through a USB port on a Windows 10 PC, you need a USB audio adapter, sometimes sold as a USB sound card or USB-to-3.5mm adapter. A simple passive cable is not enough because the headphone plug carries analog audio while USB carries digital data. The adapter performs the digital-to-analog conversion that your headphones need.

The setup is usually plug-and-play, but you may still need to select the new USB device as the Windows playback device. Microsoft ended regular Windows 10 support on October 14, 2025, although Windows 10 PCs continue to run. See Microsoft's Windows 10 end-of-support guidance if you are still using the operating system.

What adapter do you need?

Choose the adapter by looking at your headphone or headset plug. The phrase “headphone jack to USB” can be confusing: for this job, the USB connector goes into the computer and the 3.5mm jack accepts your headphones.

How to convert a headphone jack to USB in Windows 10

1. Connect the 3.5mm plug to the correct jack

For ordinary headphones, plug the 3.5mm connector into the adapter's headphone or output jack, often marked with a headphone icon or colored green. If your adapter has a separate microphone jack, do not use that jack for headphones.

2. Plug the USB audio adapter into the PC

Insert the adapter into an available USB port on the computer. Windows should detect a compatible USB audio device automatically. Microsoft has included an in-box USB Audio 2.0 driver since Windows 10 version 1703, and compatible hardware can use that class driver without a separate download. You can read the technical details in Microsoft's USB Audio 2.0 driver documentation.

3. Select the USB adapter as the sound output

Open Start > Settings > System > Sound. Under Output, open the device list and select the USB audio device. Its exact name depends on the adapter; inexpensive models often appear as “USB Audio Device” or a similar generic name. Raise the master volume and play a short audio clip to confirm that sound is reaching the headphones.

4. Set the default device and microphone if needed

If an older desktop app keeps using the computer's built-in audio, open Sound Control Panel from the Sound settings page. On the Playback tab, select the USB device and choose Set Default. For a headset microphone, use the Recording tab and set the USB microphone as the default input as well.

If your headset has one four-pole plug

A phone-style headset usually combines left audio, right audio, ground, and microphone on one TRRS connector. A USB adapter with separate green and pink jacks will not provide the microphone connection from that single plug by itself. Use a compatible headset splitter, or buy a USB adapter with a single combo headset jack.

What to do if there is no sound

• Check the selected output: return to Settings > System > Sound and make sure the USB device is selected.
• Try another USB port: connect the adapter directly to the PC if a hub is causing detection or power problems.
• Check the jack: headphones belong in the output jack; a microphone belongs in the input jack.
• Confirm headset compatibility: a single TRRS headset plug needs a combo-jack adapter or the correct splitter if you also need the mic.
• Test the headphones elsewhere: this helps separate a headphone fault from an adapter or Windows problem.
• Check Windows audio troubleshooting guidance: Microsoft recommends verifying the output device and default playback device when headphones or speakers are silent. See Microsoft's audio troubleshooting steps.

Will a USB adapter change sound quality?

Possibly. The USB adapter contains its own audio electronics, so the result depends on the adapter's digital-to-analog converter, amplifier, electrical noise, and driver behavior. A basic adapter is often sufficient for everyday headphones, but audible hiss, distortion, very low volume, or intermittent audio can point to a poor or faulty adapter. Switching USB ports can help with connection issues, but persistent noise is a reason to try a better-quality USB audio adapter rather than assuming the headphones are at fault.

Once Windows recognizes the adapter and you select it as the output device, your 3.5mm headphones work through USB like any other Windows audio endpoint.