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Small black USB dongle with two 3.5 mm jacks and inline controls

1Mii S03 USB Sound Card 7.1 Virtual Surround 3.5mm Jacks

SKU CH-FCEH-RJCY5

Adds 3.5 mm headphone and microphone jacks via USB with 7.1 virtual surround, mic mute and volume control

  • Specifications96 KHz, Surround, usb, 2.4892 L x 11.5062 W x 15.3924 H cent
  • FeaturesSurround, usb, 96 KHz, Desktop, Gaming Console, Headphone, L
  • Adds 3.5 mm headphone and mic jacks via one USB port
  • Plug and play — no driver setup required for quick audio access
  • Dedicated mic volume knob and mute button for voice control
  • 1 virtual surround widens the sound field in games and media
  • 96 kHz sample rate supports high-resolution audio playback

External USB audio adapter

The 1Mii S03 adds separate 3.5 mm headphone and microphone sockets through a single USB port. It is aimed at users whose built-in jack is damaged, missing or inconveniently placed. The device works with PCs, laptops and USB-audio compatible gaming consoles. No driver installation is required for basic operation.

USB audio practical limits

Audio quality is bound to the USB audio class implementation and the 96 kHz sample rate ceiling. The 7.1 virtual surround effect is processed in the adapter and applies only to the wired headset connected to its jacks. Microphone monitoring and mute functions are handled by the onboard controls, not by system software.

Setup checks before ordering

Verify that your device provides a standard USB Type-A port or that you have a reliable Type-A to Type-C adapter. Confirm your headset uses separate 3.5 mm plugs for audio and microphone; combined TRRS plugs will not work correctly. Ensure the operating system recognises generic USB audio devices without proprietary drivers.

Highlights

  • Adds 3.5 mm headphone and mic jacks via one USB port
  • Plug and play — no driver setup required for quick audio access
  • Dedicated mic volume knob and mute button for voice control
  • 1 virtual surround widens the sound field in games and media
  • 96 kHz sample rate supports high-resolution audio playback

Specifications

Brand1Mii
ModelS03
Part NumberRT503X1
Specifications96 KHz, Surround, usb, 2.4892 L x 11.5062 W x 15.3924 H centimeters, 0.109 kilograms, false
FeaturesSurround, usb, 96 KHz, Desktop, Gaming Console, Headphone, Laptop

Questions about this item

Which version of the 1Mii S03 should I choose for a headset with 3.5 mm plugs?

The S03 provides separate 3.5 mm headphone and microphone jacks, so a single model covers headsets with dual 3.5 mm connectors.

What does the 7.1 virtual surround figure mean when I use the adapter?

It enables a 7.1 virtual surround mode that widens the soundstage for games and media through any wired headset connected to the 3.5 mm output.

What USB standard does the S03 use and what sample rate does it support?

The adapter connects via a USB port and operates at up to 96 kHz sample rate for audio playback and recording.

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