---
product_id: 319040567
title: "MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet"
brand: "millso"
price: "Bs.332"
currency: BOB
in_stock: true
reviews_count: 13
category: "Mill So"
url: https://www.desertcart.bo/products/319040567-millso-usb-to-3-5mm-audio-jack-adapter-sapphire-blue
store_origin: BO
region: Bolivia
---

# Durable sapphire blue metal housing Stereo sound + mic combo Plug & Play USB interface MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet

**Brand:** millso
**Price:** Bs.332
**Availability:** ✅ In Stock

## Summary

> 💙 Elevate your sound game—plug in, stand out, and never miss a beat!

## Quick Answers

- **What is this?** MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet by millso
- **How much does it cost?** Bs.332 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/319040567-millso-usb-to-3-5mm-audio-jack-adapter-sapphire-blue)

## Best For

- millso enthusiasts

## Why This Product

- Trusted millso brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium Sound Stability:** Built-in smart chipset and high-density shielding ensure rich, stable audio transmission every time.
- • **Universal Compatibility:** Works flawlessly with Windows, Mac, Linux, PS4, Raspberry Pi, and more for ultimate versatility.
- • **Compact & Portable Design:** Sapphire blue metal casing with a 1-foot cable fits perfectly in your pocket or workspace without clutter.
- • **Effortless Plug & Play Setup:** No drivers needed—just connect and instantly upgrade your audio experience across multiple platforms.
- • **Seamless Audio Dual-Functionality:** Enjoy crystal-clear stereo sound and mic input through one sleek TRRS 3.5mm jack.

## Overview

The MillSO USB to 3.5mm Audio Jack Adapter is a compact, driver-free external sound card that converts USB ports into a TRRS 4-pole audio jack. Compatible with a wide range of devices including PCs, Macs, PS4, and Raspberry Pi, it supports stereo sound and microphone input simultaneously. Featuring a durable sapphire blue metal housing and advanced chipset, it delivers high-quality, stable audio transmission in a portable design perfect for professionals on the go.

## Description

Shop for MillSO PC products at the desertcart.co.uk Electronics & Photo store.

Review: Good product - Generally Speaking, I like the product and I have no complaint about it
Review: Works exactly as it should - Ordered a much needed USB headphone port and the delivery was very early. It works exactly as it should and the sound quality is excellent.

## Features

- MillSO 3.5mm to USB jack audio adapter ideal to connect a TRRS 4-pole CTIA 3.5mm headset, TRRS mic or speaker to PC via USB interface. One combo interface support stereo sound listening + speaking, dual functions. Easily add a 3.5mm TRRS aux port for your devices, or use it as a replacement for a failed USB sound card audio adapter. (Unidirectional audio transmission: this USB port is output, not input. Audio can only transfer from USB port to 3.5mm port).
- Compatibility: this audio adapter fits various platforms and systems, Windows 10/8.1/8/7/Vista/XP, Mac OS X, Linux, Google Chromebook, Windows Surface 3 pro, Raspberry Pi, etc. Convert USB port of PC, Laptop, Desktop, PS4... to a TRRS 4-pin audio jack, for connecting 3.5mm headset or speakers. (NOT compatible for Apple standard headphones, TV, amplifier, car, PS3).
- Driver Free, Plug & Play: Easy to set up, no driver required, just plug and play! USB bus-powered, no external power required. Compact body size and 1-feet-more-length design make sure you will not interfere with other devices when using other USB-ports. Easily be carried in a pocket to the office, conference room or at home.
- Premium Materials: Built-in smart Chipset for high-speed audio signal decoding and offer a full and delicate tone, highly restored quality sound. Robust Sapphire Blue Metal Housing ensure a wear-resistant, anti-corrosion, solid protection, and charming out looking. This aux to USB adapter tightly combined 20 Strands of three Cores, enameled copper, soft and durable PVC covers. It's high-density shielding protection, ensures high stability sound transmission, and a soft touch.
- Reliable Warranty: MillSO offers an unconditional Warranty for our USB External Stereo Sound Adapter to guard against any quality trouble. Just contact us for MilLSO 24-hour customer support team. Our warm support team will solve any problem for you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | MillSO |
| Product Dimensions | 4.5 x 2.01 x 2.01 cm; 20 g |
| Item model number | MUSB351F-30U |
| Manufacturer | MillSO |
| Series | MUSB351F-30U-CA |
| Colour | Sapphire Blue |
| Hardware Platform | Personal Computer, PlayStation 4, Raspberry Pi |
| Operating System | linux, mac os x, windows 10, windows vista, windows xp |
| Are Batteries Included | No |
| Item Weight | 20 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Compatible devices:** Desktop, Laptop, Cpomputer, PC, Playstation..., Single-plug Headphone, Speaker, 4-pole TRRS external microphone
- **Brand:** MillSO
- **Hardware interface:** USB
- **Audio output mode:** Stereo
- **Platform:** Linux, PlayStation 4, Windows 10

## Images

![MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet - Image 1](https://m.media-amazon.com/images/I/618IEEoW6eL._AC_SX679_.jpg)
![MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet - Image 2](https://m.media-amazon.com/images/I/61HxtlPyYFL._AC_SL1500_.jpg)
![MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet - Image 3](https://m.media-amazon.com/images/I/61HxtlPyYFL._AC_SX679_.jpg)
![MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet - Image 4](https://m.media-amazon.com/images/I/61J9HQ4TxhL._AC_SX679_.jpg)
![MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, Mac, PS4, PC, Laptop, Desktops - 1 Feet - Image 5](https://m.media-amazon.com/images/I/61qRJDPSPFL._AC_SX679_.jpg)

## Questions & Answers

**Q: Can this be used with headsets (mic) or just with headphones?**
A: Dear MillSO Customer,
Thank you for your question. 
Yes, this USB adapter can be used to connect to a headset with a mic(TRRS) or a headphone(TRS) to your computer. 
Notice: when using the mic function, please make sure the headset is TRRS standard (3 black rings on the plug).
If you have any other problems, please contact us via support@millso.com, we will always be more than happy to assist you. 
Best regards! 
MillSO Customer Support Team

**Q: Can I use this to connect a cassette player to my mini PC in order to digitize my cassette tapes that can't be found anywhere else?**
A: I am not sure.  For some reason I am thinking that this is outgoing from pc to speakers, for example.  Not sure if it works the other way around.

**Q: Can I connect a microphone to the nintendo switch?**
A: Dear MillSO Customer,
Yes, you can, but you must confirm your external microphone is a 4-pole (TRRS) standard. TRRS plug has 3 black rings. If you connect a 3-pole TRS mircophone, the mic function will be disabled.

Thank you for your question. Hope this answer will help you, if you have any other problems, please contact us via support@millso.com, we will always be more than happy to assist you.

Best regards! 
MillSO Technical Support Team

**Q: Can i connect ipad to millso 3.5mm to usb jack audio to my receiver?**
A: Dear Customer,
Thank you for your question. 
No. Because that the USB port on your receiver is used for USB flash disk, instead of music transmission. If your receiver has RCA input audio jacks, I advise that you use a "3.5mm to RCA audio adapter", it may help.
If you need any further help, please contact us via support@millso.com, we will always be more than happy to assist you. 
Best regards! 
MillSO Customer Support Team

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by A***R on 9 January 2024*

Generally Speaking, I like the product and I have no complaint about it

### ⭐⭐⭐⭐⭐ Works exactly as it should
*by K***Y on 12 February 2023*

Ordered a much needed USB headphone port and the delivery was very early. It works exactly as it should and the sound quality is excellent.

### ⭐⭐⭐⭐⭐ improved sound, very happy
*by F***A on 27 September 2021*

My computer sound always had a too low volume and, unfortunately, the jack for earbuds is faulty, so I could never use them. This USB gadget solved that problem and the volume I can now get with my earbuds far exceeds the regular volume of the PC.

## Frequently Bought Together

- MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, PS4, PS5, PC, Laptop, Desktops - 1 Feet
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- 2 Pack USB to 3.5mm Jack Audio Adapter, JSAUX USB to Audio Aux Adapter External Stereo Sound Card USB to 3.5mm TRRS Female Headset for PS4, PS5, Headphone,Mac, Linux, Laptop, Desktops, Docking Station

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-03-14*