---
product_id: 433711219
title: "Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC Compatible with MacBook Pro/Air, Laptop, Computer"
brand: "cubilux"
price: "€ 58.07"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cubilux"
url: https://www.desertcart.nl/products/433711219-cubilux-usb-c-to-spdif-transmitter-unidirectional-type-c-to
store_origin: NL
region: Netherlands
---

# Supports 5.1 surround & stereo audio USB-C to SPDIF optical output Hi-Res 48-192kHz/24-bit audio Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC Compatible with MacBook Pro/Air, Laptop, Computer

**Brand:** cubilux
**Price:** € 58.07
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game—because your ears deserve the best!

## Quick Answers

- **What is this?** Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC Compatible with MacBook Pro/Air, Laptop, Computer by cubilux
- **How much does it cost?** € 58.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/433711219-cubilux-usb-c-to-spdif-transmitter-unidirectional-type-c-to)

## Best For

- cubilux enthusiasts

## Why This Product

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

## Key Features

- • **Durable Premium Build:** Aluminum alloy casing with braided cable ensures longevity and zero signal interference for consistent performance.
- • **Plug & Play Simplicity:** No drivers, no fuss—just connect and enjoy crystal-clear, noise-free audio right out of the box.
- • **Universal Compatibility:** Works effortlessly with MacBooks, iPads, Samsung Galaxy, Google Pixel, Intel NUC, and more—future-proof your audio.
- • **Seamless USB-C to Optical Audio:** Instantly convert your USB-C port into a pristine SPDIF transmitter for flawless digital sound.
- • **Immersive 5.1 Surround Sound Ready:** Experience cinematic audio with support for 5.1 channels—perfect for home theaters and pro setups.

## Overview

The Cubilux USB C SPDIF Emitter converts USB-C or Thunderbolt ports into high-fidelity optical audio outputs, supporting stereo and 5.1 surround sound up to 192kHz/24-bit. Designed for plug-and-play use with computers, laptops, and select mobile devices, it delivers crystal-clear, noise-free digital audio via TOSLINK cables. Its robust aluminum alloy build and braided cable ensure durability and zero interference, making it an essential accessory for audiophiles and professionals seeking premium sound quality.

## Description

Product Description Cubilux USB C to S/PDIF Optical Audio Converter Cubilux USB C to TOSLINK (S/PDIF) Optical AUX Dongle sends the digital audio signal from USB C or Thunderbolt 4/3 smartphones, laptops, computers to speaker, home sound system, amplifier or other output components to deliver a more natural sound with rich details, better clarity and superior sonic accuracy. Support Lossless Hi-Res Sound up to 192 KHz/24-bit Aluminum Alloy Case with Sturdy Braided Cable for Durability Eliminate Ground Noise and Signal Interference Compact Size *Please note This adapter connects with digital audio components with an optical audio cable (S/PDIF, Toslink) and does NOT support coaxial cable. This adapter does NOT support volume adjustment on the output devices, please adjust the music volume through the receiver. This adapter does NOT support 7.1 surround sound due to the limitation of the bandwidth. Setup Instruction For Windows Please follow the steps to set up the adapter Right click the "Speaker" icon on the bottom right corner of taskbar to open sound settings. Open the "Sound Control Panel" on the right side of the "sound settings" window. Right click the "SPDIF Interface" to open the "Properties". Tick "DTS Audio" and "Dolby Digital" and you are good to go. Lossless Sound without Noises The adapter conveys digital audio signal through optical TOSLINK (S/PDIF) cable and ensures optimal signal transfer and higher fidelity audio without the interference of ground noise or static, providing beautiful sound without signal loss and enhancing the audio experience of watching movies, listening music and gaming. Hi-Res Sound Support 48KHz/24-bit, 96KHz/24-bit, 192KHz/24-bit audio stream and DTS Audio, DTS 96/24, LPCM, etc. Solid Construction Full Aluminum alloy and braided cable provide great durability for daily use. The Aluminum shell ensures zero signal interference for crisp sound. Suitable for connecting USB C devices to TOSLINK or S/PDIF optical output components like Soundbar, Speaker, Home Theatre Audio System, AV amplifier/receiver, audio mixer etc. Compatible with Mac MacBook Air 13"(M2/M1/Intel Version)・MacBook Pro 13"/14"/15"/16"(M2/M1/Intel Version)・MacMini (M2/M1/Intel Version)・iMac 21.5"/24"/27"・iMac Pro 27"・Mac Pro・Mac Studio iPad 2022 iPad 10.9"(Gen 10th)・2022/2021/2020/2018 iPad Pro 12.9"(Gen 6th/5th/4th/3rd)・2022/2021/2020/2018 iPad Pro 11 (Gen 4th/3rd/2nd/1st)・2022/2020 iPad Air(Gen 5th/4th)・2021 iPad Mini(Gen 6) Samsung Galaxy Phone S24 Ultra・S24+・S24・S23 Ultra・S23+・S23・S22 Ultra 5G・S22+ 5G・S22 5G・Z Fold4・Z Flip4・A73 5G・A53 5G・A33 5G・Z Fold3 5G・Z Fold2 5G・Z Flip3 5G・Z Flip 5G・Z Flip・S21+ 5G・S21 Ultra 5G・S21 5G・S20+ 5G・S20+・S20 Ultra 5G・S20 Ultra・S20 FE 5G・S20 FE・S20 5G UW・S20 5G・S20・S10 Lite・Note 20 Ultra 5G・Note 20 Ultra・Note 20 5G・Note 20・Note 10+ 5G・Note 10+・Note 10 5G・Note 10・Fold 5G・Fold・A90 5G Samsung Galaxy Tab S9/S8 Ultra・S9/S9+/S8/S8+/S7/S7+/S6・S9/S7 FE・S5e Google Pixel 9/8/7/6 Pro・Pixel 9/8/7/6/5/4/3/2/1・Pixel 7a/6a・Pixel Fold・Pixel Tablet・Pixel 4/3/2/1 XL Intel NUC Computer and most USB C/Thunderbolt 4/3 laptops or computers.

Review: Great little USB-C to optical adapter – perfect with Chord Mojo 2 - I bought this Cubilux USB-C to SPDIF transmitter to add an optical output to my devices, and it has worked exactly as I hoped. I use it to connect my iPhone to my Chord Mojo 2, and also my laptop to the Mojo 2, and in both cases the sound quality is very good – clean, detailed and noise-free. Setup is as simple as it gets: plug it into the USB-C port, connect an optical cable to the DAC, and it’s ready to go. No drivers or fiddling with settings were needed in my case. It locks onto the signal reliably and I haven’t had any dropouts or glitches. The build quality feels solid for such a small device, and it’s compact enough to throw in a bag for travel. For anyone who wants to add a proper digital optical output to a phone, tablet or laptop and feed a high-quality DAC like the Mojo 2, this is a very handy little adapter. I’m very pleased with it and happy to recommend it.
Review: Works with sonos ray and MacBook air m4 - I got this to hook up my sonos ray as only input is optical, my MacBook is connected to Monitor via displaylink and adapter connected to monitor via usb, i then set MacBook sound output to usb in settings, also changed monitor sound output to usb, sound quality and connectivity all good, easy to install, good quality.

## Features

- [Convert USB Port to SPDIF Transmitter] – Cubilux S/PDIF Output Adapter lets you transmit the optical audio signal from the USB Type C port of computers to soundbars, home audio system, external DAC or amplifier to enjoy 5.1 surround sound.
- [For Output ONLY] – This converter cannot be used in the opposite direction, not for receiving SPDIF signals from source devices like DACs/AMPs, not for recording audio.
- [Support 5.1 & Stereo Audio, NOT for 7.1] – This adapter can output stereo optical signal without any setup or software, and with a media player to decode 5.1 files and proper setting, it can output 5.1 surround sound, but this adapter does NOT support 7.1 surround sound due to the limitation of the USB port.
- [NOT for Partial-Featured USB Port] – This adapter is designed for computers and is not compatible with devices that devices with only partial-featured USB ports, such as TVs, Car USB ports, speakers’ USB ports, etc.
- [Crystal Clean Hi-Res Sound] – The USB Type C to TOSLINK Connector delivers crisp and clear sound from 48 KHz/24-bit to 192 KHz/24-bit with great clarity and rich audio details.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QFYNB7Y |
| Best Sellers Rank | 3,349 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 9 in Digital-Analog Converters |
| Brand | Cubilux |
| Brand Name | Cubilux |
| Colour | Clear |
| Compatible Devices | USB-C or Thunderbolt 4/3 compatible devices |
| Compatible devices | USB-C or Thunderbolt 4/3 compatible devices |
| Connector Type | USB Type C, Toslink |
| Connector type | USB Type C , Toslink |
| Country of Origin | China |
| Current Rating | 2 Amps |
| Customer Reviews | 4.3 out of 5 stars 2,046 Reviews |
| Input Voltage | 5 Volts |
| Item Dimensions | 22.9 x 2 x 1.5 centimetres |
| Item Weight | 0.02 Kilograms |
| Item dimensions L x W x H | 22.9 x 2 x 1.5 centimetres |
| Manufacturer | Cubilux |
| Model Number | CUB-USBOPT |
| Nominal Power | 0.4 Watts |
| Number of Items | 1 |
| Number of Ports | 2 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Product Finish Type | Metallic |
| Product Warranty | 1 year |
| Specific Uses For Product | Computers, Laptops |
| Specific uses for product | Computers, Laptops |
| Unit Count | 1.0 Count |

## Product Details

- **Colour:** Clear
- **Compatible devices:** USB-C or Thunderbolt 4/3 compatible devices
- **Connector type:** USB Type C, Toslink
- **Item dimensions L x W x H:** 22.9 x 2 x 1.5 centimetres
- **Specific uses for product:** Computers, Laptops

## Images

![Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC Compatible with MacBook Pro/Air, Laptop, Computer - Image 1](https://m.media-amazon.com/images/I/51nQz7+58LL.jpg)

## Questions & Answers

**Q: Does this unit support outputting at 44,100 and 48,000 Hz?**
A: Hi, it supports 44.1K/48KHz sampling rate, as well as 96KHz & 192KHz.

**Q: Is this adapter bi-directional?**
A: Hi, it's uni-directional and only for USB to SPDIF conversion.

**Q: Can you use it to record mp3 music from the pc to a sony md player-recorder please**
A: Hi, if Sony MD player supports SPDIF input for music recording, then you could use this adapter for this purpose.

**Q: I received & I tried connecting to my PC it shows in the System> sound as SPDIF interface but cant get the output on my Sonos Ray, what to do?**
A: Have you changed the sound output of the PC?
In Windows 11 you can do this from System/Sound. Select 'SPDIF Interface' for the output and ensure the volume is > 0.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great little USB-C to optical adapter – perfect with Chord Mojo 2
*by P***R on 29 December 2025*

I bought this Cubilux USB-C to SPDIF transmitter to add an optical output to my devices, and it has worked exactly as I hoped. I use it to connect my iPhone to my Chord Mojo 2, and also my laptop to the Mojo 2, and in both cases the sound quality is very good – clean, detailed and noise-free. Setup is as simple as it gets: plug it into the USB-C port, connect an optical cable to the DAC, and it’s ready to go. No drivers or fiddling with settings were needed in my case. It locks onto the signal reliably and I haven’t had any dropouts or glitches. The build quality feels solid for such a small device, and it’s compact enough to throw in a bag for travel. For anyone who wants to add a proper digital optical output to a phone, tablet or laptop and feed a high-quality DAC like the Mojo 2, this is a very handy little adapter. I’m very pleased with it and happy to recommend it.

### ⭐⭐⭐⭐⭐ Works with sonos ray and MacBook air m4
*by P***W on 30 January 2026*

I got this to hook up my sonos ray as only input is optical, my MacBook is connected to Monitor via displaylink and adapter connected to monitor via usb, i then set MacBook sound output to usb in settings, also changed monitor sound output to usb, sound quality and connectivity all good, easy to install, good quality.

### ⭐⭐⭐⭐⭐ Simple plug and play USB C to optical adapter
*by W***L on 13 January 2026*

works completely as expected. Plug and play on both Windows 11 and Mac without any setup requirements. Sound quality is unaffected with no audible delay. It is abit pricey for what it is, but so far has done the job reliably

## Frequently Bought Together

- Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC for MacBook Pro/Air, Laptop, Computer
- KabelDirekt Optical Audio Cable – 10ft Digital Optical Cable for soundbars, Fiber Optic Lead (Digital S/PDIF Cable, Stereo Systems/amplifiers/amps, Home Cinema, Xbox One/PS4)
- Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC ONLY, NOT for TV Or Other Devices

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-24*