---
product_id: 408710372
title: "Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC for MacBook Pro/Air, Laptop, Computer"
brand: "cubilux"
price: "€ 53.32"
currency: EUR
in_stock: true
reviews_count: 13
category: "Cubilux"
url: https://www.desertcart.at/products/408710372-cubilux-usb-c-to-spdif-transmitter-unidirectional-type-c-to
store_origin: AT
region: Austria
---

# Supports 5.1 Surround Sound 192KHz/24bit Hi-Res DAC USB-C to Optical SPDIF Output Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC for MacBook Pro/Air, Laptop, Computer

**Brand:** cubilux
**Price:** € 53.32
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your audio game—because your sound deserves the spotlight!

## Quick Answers

- **What is this?** Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC for MacBook Pro/Air, Laptop, Computer by cubilux
- **How much does it cost?** € 53.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/408710372-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

- • **5.1 Surround Sound Ready:** Supports multi-channel audio for home theater vibes without the 7.1 hassle.
- • **Audiophile-Grade Sound Clarity:** Crystal clear 192KHz/24bit DAC delivers rich, noise-free audio for immersive listening.
- • **Compact & Sleek Metallic Design:** Minimal footprint with premium finish, blending effortlessly into your workspace.
- • **Seamless USB-C to Optical Audio:** Instant plug-and-play with MacBook Pro/Air and laptops—no drivers needed.
- • **Universal Compatibility with USB-C:** Works flawlessly with Thunderbolt 3/4 devices—perfect for your professional setup.

## Overview

The Cubilux USB C to SPDIF Transmitter is a unidirectional adapter that converts USB-C ports on laptops and computers into high-fidelity optical audio outputs. Featuring a 192KHz/24bit DAC, it supports stereo and 5.1 surround sound, delivering crystal-clear, noise-free audio to soundbars, amplifiers, and external DACs. Designed for plug-and-play ease with MacBook Pro/Air and Thunderbolt 3/4 devices, this sleek metallic adapter is the perfect upgrade for professionals seeking premium sound quality without complicated setups.

## Description

Buy Cubilux USB C to SPDIF Transmitter, Unidirectional Type C to Optical Audio Output Adapter with 192KHz/24bit DAC for MacBook Pro/Air, Laptop, Computer: Digital-Analog Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Instanly recognized by Windows and excellent sound quality. - My prior desktop computer had an optical output. With my laptop, no such luck. So I purchased this unit and it worked perfectly right out of the box, no Windows settings required adjustment or configuration. I should add that I actually connected this unit to a docking station that is connected to my laptop and not the laptop itself, and was concerned that this may present a complication but it did not. The computer located the converter right away. The sound quality is excellent in my opinion. I source music to a pretty high end audio setup and there is no background noise or hiss, and no stuttering or other sound issues.
Review: The best way to send audio from one PC to antoher. - If you want to send audio any other way, you're looking at introducing delay, from a network/wireless setup, or degrading audio quality from converting from digital > analog, then back from analog > digital, not to mention EMI. Keeping the signal all digital like this, and using a hard wired connection, is absolutely the best of both worlds. As long as your sample rate/bit depth is the same across devices, this is the only solution you should be looking at. I used it with a 15ft optical cable, and it transmitted just fine.

## 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 | #18,095 in Electronics ( See Top 100 in Electronics ) #33 in Digital-Analog Converters |
| Brand | Cubilux |
| Color | black |
| Compatible Devices | USB-C or Thunderbolt 4/3 compatible devices |
| Connector Type | USB Type C |
| Current Rating | 0.08 A |
| Customer Reviews | 4.3 out of 5 stars 925 Reviews |
| Finish | Metallic |
| Input Voltage | 5 volts |
| Item Dimensions | 9 x 0.8 x 0.6 inches |
| Item Weight | 0.02 kg |
| Item dimensions L x W x H | 9 x 0.8 x 0.6 inches |
| Manufacturer | Cubilux |
| Mfr Part Number | Z10-14BK |
| 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 |
| Specific Uses For Product | Computers, Amplifiers |
| Unit Count | 1 Count |

## Product Details

- **Color:** black
- **Compatible Devices:** USB-C or Thunderbolt 4/3 compatible devices
- **Connector Type:** USB Type C
- **Item dimensions L x W x H:** 9 x 0.8 x 0.6 inches
- **Specific Uses For Product:** Computers, Amplifiers

## Images

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Instanly recognized by Windows and excellent sound quality.
*by B***N on June 13, 2026*

My prior desktop computer had an optical output. With my laptop, no such luck. So I purchased this unit and it worked perfectly right out of the box, no Windows settings required adjustment or configuration. I should add that I actually connected this unit to a docking station that is connected to my laptop and not the laptop itself, and was concerned that this may present a complication but it did not. The computer located the converter right away. The sound quality is excellent in my opinion. I source music to a pretty high end audio setup and there is no background noise or hiss, and no stuttering or other sound issues.

### ⭐⭐⭐⭐⭐ The best way to send audio from one PC to antoher.
*by J***N on October 25, 2025*

If you want to send audio any other way, you're looking at introducing delay, from a network/wireless setup, or degrading audio quality from converting from digital > analog, then back from analog > digital, not to mention EMI. Keeping the signal all digital like this, and using a hard wired connection, is absolutely the best of both worlds. As long as your sample rate/bit depth is the same across devices, this is the only solution you should be looking at. I used it with a 15ft optical cable, and it transmitted just fine.

### ⭐⭐⭐⭐⭐ These actually work amazing!!!
*by J***W on June 2, 2026*

I hooked them to 2 sterio systems in 2 different rooms. They are connected to my Mac studio. You can play multiple systems with these and the sound is amazing. Absolutely no static. Unlike Bluetooth.

## 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 Austria*
*Store origin: AT*
*Last updated: 2026-10-26*