---
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: "A$53"
currency: AUD
in_stock: true
reviews_count: 13
category: "Cubilux"
url: https://www.desertcart.com.au/products/408710372-cubilux-usb-c-to-spdif-transmitter-unidirectional-type-c-to
store_origin: AU
region: Australia
---

# 192kHz/24-bit Hi-Res Audio USB-C Compatibility 5.1 Surround Sound 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:** A$53
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your audio game—turn USB-C into a sonic powerhouse!

## 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?** A$53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/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

- • **Hi-Res Audio Clarity:** Supports up to 192kHz/24-bit for rich, detailed sound that elevates your listening experience.
- • **Plug & Play Optical Output:** No drivers or software needed—just connect and enjoy crystal-clear stereo or surround sound instantly.
- • **Seamless 5.1 Surround Sound:** Effortlessly transmit immersive multi-channel audio from your USB-C device to your home theater or DAC.
- • **Compact & Lightweight Design:** Slim, portable adapter that fits seamlessly into your professional setup without clutter.
- • **Universal USB-C Compatibility:** Designed specifically for computers with full-featured USB-C ports—perfect for MacBook Pro/Air and laptops.

## Overview

The Cubilux USB C SPDIF Emitter converts your computer’s USB-C port into a high-quality optical audio transmitter, delivering crisp 5.1 surround sound and stereo output at up to 192kHz/24-bit resolution. Ideal for connecting to soundbars, DACs, and amplifiers, this plug-and-play adapter is tailored for full-featured USB-C devices, ensuring professional-grade audio clarity in a sleek, portable form factor.

## 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: Perfect! - Worked Perfectly to connect my studio speakers to my desktop computer.
Review: Does it’s job - Works just as I expected but my iPhone 15 didn’t. Hoping to use the transmitter to connect the iPhone to my stereo’s SPDIF input I found the phone stuttered (jitter perhaps) every few seconds making it unlistenable. I’ll buy another Cubilux adapter when the need arises.

## 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 | #11,909 in Electronics ( See Top 100 in Electronics ) #23 in Digital-Analog Converters |
| Customer Reviews | 4.3 4.3 out of 5 stars (797) |
| Date First Available | January 14, 2022 |
| Item Weight | 0.704 ounces |
| Item model number | CUB-USBOPT |
| Manufacturer | Cubilux |
| Product Dimensions | 9 x 0.8 x 0.6 inches |

## 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

### ⭐⭐⭐⭐⭐ Perfect!
*by D***S on January 6, 2026*

Worked Perfectly to connect my studio speakers to my desktop computer.

### ⭐⭐⭐⭐⭐ Does it’s job
*by R***I on November 22, 2025*

Works just as I expected but my iPhone 15 didn’t. Hoping to use the transmitter to connect the iPhone to my stereo’s SPDIF input I found the phone stuttered (jitter perhaps) every few seconds making it unlistenable. I’ll buy another Cubilux adapter when the need arises.

### ⭐⭐⭐⭐⭐ Can play Apple Music HiRes Lossless with AVR (or DAC)
*by H***R on February 29, 2024*

You can’t stream hires lossless (today) so need a wired connection. AppleTV is limited to 48 kHz. My AVR has an internal DAC that supports 24b / 192 kHz but won’t accept via USB. Looked all around for solution because I knew it had to be simple. And it is but everyone only suggested external DAC. This dongle lets you connect directly from iPad or new iPhones using an optical cable. I tried both and works perfectly. Sound quality is noticeably better if you have other good components like amp and speakers. iPad makes nice music display too, just need to figure out way to control remotely.

## 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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**Shop now:** [https://www.desertcart.com.au/products/408710372-cubilux-usb-c-to-spdif-transmitter-unidirectional-type-c-to](https://www.desertcart.com.au/products/408710372-cubilux-usb-c-to-spdif-transmitter-unidirectional-type-c-to)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-02*