--- product_id: 452922278 title: "Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices" brand: "cubilux" price: "R930" currency: ZAR in_stock: true reviews_count: 13 category: "Cubilux" url: https://www.desertcart.co.za/products/452922278-cubilux-usb-a-to-toslink-optical-audio-adapter-unidirectional-usb store_origin: ZA region: South Africa --- # Hi-Res 192KHz/24-bit sound USB Type A plug & play Aluminum alloy durable case Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices **Brand:** cubilux **Price:** R930 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your sound game—because your ears deserve the best! ## Quick Answers - **What is this?** Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices by cubilux - **How much does it cost?** R930 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/452922278-cubilux-usb-a-to-toslink-optical-audio-adapter-unidirectional-usb) ## 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 - • **Rugged & Portable Design:** Sleek aluminum casing with braided cable ensures durability and interference-free sound on the go. - • **Exclusive PC Compatibility:** Optimized for computers and gaming consoles—ditch Bluetooth and unlock true digital audio clarity. - • **Zero Setup, Pure Plug & Play:** No drivers or power adapters needed—just connect and elevate your audio instantly. - • **Audiophile-Grade Hi-Res Audio:** Experience crystal-clear, lossless sound up to 192KHz/24-bit for immersive listening. - • **Seamless USB to S/PDIF Connection:** Instantly link your laptop or PC to premium sound systems without bulky cables. ## Overview The Cubilux USB SPDIF Emitter is a compact, plug-and-play USB Type A to optical audio converter designed for computers and gaming consoles. Delivering high-resolution digital audio up to 192KHz/24-bit, it ensures crystal-clear, lossless sound with zero latency. Built with a durable aluminum alloy case and braided cable, it isolates interference and offers long-lasting reliability. Perfect for audiophiles seeking to upgrade from Bluetooth, this adapter requires no drivers or external power and supports Windows and Mac OS systems. ## Description Product description Important Note This transmitter is designed for transmitting optical digital audio signals. It does NOT convert stereo audio to 5.1 surround sound, and it CANNOT upscale low-resolution audio to high-resolution. This transmitter is ONLY compatible with computers and PS5/PS4 . It does NOT work with TVs , car USB ports , Xbox consoles , or other non-computer devices . On computers , this transmitter supports both stereo and 5.1 surround sound . On PlayStation consoles, this transmitter supports stereo ONLY . On macOS , the transmitter does NOT support volume adjustment. Please control the volume directly on your receiving device. 7.1 surround sound is NOT supported . Explore Cubilux SPDIF Adapters USB > SPDIF Transmitter USB C > SPDIF Transmitter SPDIF > USB Receiver SPDIF > USB C Receiver USB > 2 SPDIF Transmitter Step 1 Get a 5.1 surround sound movie or music file ready. Step 2 Connect your PC to your AV receiver via the USB S/PDIF adapter. Step 3 Set the USB S/PDIF adapter as your default output device in system settings. Step 4 Make sure the sampling rate of your PC matches your receiver’s supported format. Step 5 Use a media player that supports 5.1 surround sound to enjoy immersive audio. 5.1 Surround Sound Setup Guide USB SPDIF Transmitter User Instructions Why is there no sound or distorted "static" noise? Most audio issues stem from a Resolution Mismatch . Minor Difference: Distortion / Jitter - Occurs when the system tries to re-sample the audio, leading to a loss in clarity or subtle "crackling." Major Difference: No Sound - Occurs when you send a high-res signal (e.g., 384kHz) to a device that only supports up to 96kHz. The hardware simply cannot "read" the data. To get perfect, noise-free sound, you must ensure three-way synchronization between your Audio File , Output , and Receiving Device . Know Your Hardware Limits Before adjusting settings, check your DAC or Active Speaker’s manual for its Maximum Supported Resolution . Many Optical (Toslink) connections are capped at 24-bit/192kHz or even 96kHz . If you push a signal beyond these hardware limits, you will experience total silence or loud static noise. How to Achieve the Perfect Match Method A (Automatic): Use a player that supports Exclusive Mode/Bit-Perfect (like Tidal, Foobar2000, Kodi). It will automatically change the Windows output to match the file's native resolution. Method B (Manual): If your player doesn't support automatic switching, you must manually go to Sound Settings and select the resolution that matches both your file and your DAC's capability. Why does my audio experience dropouts or "cut in and off"? It is usually a Clock Synchronization (Jitter) issue rather than a hardware defect. Adjust DPLL Settings (Recommended) Increase the DPLL or Jitter Elimination level in your DAC’s menu (e.g., change from 5 to 7 or higher). This widens the "tolerance window" for the digital signal, allowing the DAC to maintain a stable lock even if the input timing has slight instabilities. Turn the ASRC (Asynchronous Sample Rate Converter) switch to ON. It uses the DAC’s internal high-precision clock to re-process the audio, effectively isolating it from any jitter introduced by the source or cable. Lower the Sample Rate In Sound Settings, set the output to 24-bit/48kHz or 44.1kHz. High sample rates (like 192kHz) are extremely sensitive to signal integrity. Lowering the rate reduces timing pressure and significantly improves connection stability with negligible impact on sound quality. Review: Sound Quality Is Superb - This device works very well. My new PC had no SPDIF Optical out. Plugged this into a USB port and I now have crystal clean 24 Bit audio to listen to my music on the BIG speakers and my AV Amplifier. It's a more cost effective option than installing a PCI card in the computer. One minor issue: The first one I ordered had a short in the USB cable. The sound would stop under the weight of the Optical cable plugged into it. Hanging there caused a short. Must be manufacturing issue. Given the reasonable price, I just bought a second one and it works fine. Now I have two. One as a spare I guess. I can get the bad one to work if I hold up the cable in a manner to take the weight off the USB connecter. Strange issue, but I didn't bother to send it back. The cost of shipping wouldn't be worth it. It's a great product but needs better quality control in manufacturing. Review: Great Little Adapter, Huge Sound Difference - I picked this up to improve the audio quality from my PC to my Samsung HW-S50B soundbar. Bluetooth just wasn’t cutting it, the sound was hollow, lacked bass, and didn't use the center speaker at all. This inexpensive adapter completely changed that. It was plug-and-play on Windows, I just had to switch my sound output from Bluetooth to SPDIF and I was good to go. Now I get clean, full sound with strong bass and much better center channel clarity. Movies and music actually sound how they should. Build quality feels solid too, no signal dropouts, and the optical connector fits snugly into my soundbar. The price is excellent for what it delivers, especially compared to some of the overpriced alternatives out there. If you're looking to squeeze better sound out of a setup that supports optical input, this adapter is a no-brainer over Bluetooth. ## Features - [Instantly Connect your USB A Devices to S/PDIF Sound System] – Cubilux USB A to S/PDIF Optical Audio Converter lets you easily connect your USB Type A laptop, computer or gaming console with sound bar, home audio system, external DAC, amplifier, preamp or speaker to enjoy lossless surround sound music, no need for bulky cable connection or set up. - [Crystal Clean Hi-Res Sound] – The USB Type A to TOSLINK Connector delivers crisp and clear High-Resolution sound at 48KHz/24-bit, 96KHz/24-bit, 192KHz/24-bit with great clarity and rich audio details. - [Plug & Play] – No need for a driver or external power. Works with Windows and Mac OS computer, laptop, PC with USB Type A port. - [Compact and Durable] – Made with Aluminum alloy case and braided cable, the adapter isolates EM/RF interference and offers great durability as well. Measured at 0.6in x 0.6in x 8in (cable included), this adapter is super portable to carry. - [Important Note] – This adapter is for computers ONLY and does NOT support TV, Xbox, or Switch for audio output. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B2DBGKL3 | | Audio Output Mode | Stereo, Surround Sound | | Best Sellers Rank | #6,460 in Electronics ( See Top 100 in Electronics ) #6 in Digital-Analog Converters | | Brand | Cubilux | | Brand Name | Cubilux | | Compatible Devices | Gaming Console, Laptop, Personal Computer | | Customer Reviews | 4.2 out of 5 stars 1,158 Reviews | | Interface | Optical, USB | | Interface Type | Optical, USB | | Item Dimensions L x W | 9.1"L x 0.31"W | | Manufacturer | Cubilux | | Material Type | Aluminum alloy, Cable | | Maximum Supply Voltage | 5.2 Volts | | Minimum Supply Voltage | 4.8 Volts | | Model | Cubilux | | Number of Channels | 2 | | Number of Pins | 4 | | Part Number | Z10-15BK | | Smart Home Compatibility | Not Smart Home Compatible | | Unit Count | 1.0 Count | | Upper Temperature Rating | 104 Degrees Fahrenheit | ## Product Details - **Brand:** Cubilux - **Color:** Black - **Compatible Devices:** Gaming Console, Laptop, Personal Computer - **Connector Type:** USB Type A - **Item dimensions L x W x H:** 2.56 x 2.17 x 0.98 inches ## Images ![Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices - Image 1](https://m.media-amazon.com/images/I/617GCESrDPL.jpg) ![Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices - Image 2](https://m.media-amazon.com/images/I/81BUR9eVD-L.jpg) ![Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices - Image 3](https://m.media-amazon.com/images/I/71dCZLil8fL.jpg) ![Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices - Image 4](https://m.media-amazon.com/images/I/81pM-1+XpaL.jpg) ![Cubilux USB A to TOSLINK Optical Audio Adapter, Unidirectional USB Type A to SPDIF Digital Converter, S/PDIF Transmitter for Computer Laptop PC PS5/4 ONLY, NOT for TV Or Other Devices - Image 5](https://m.media-amazon.com/images/I/71+wNegvrQL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sound Quality Is Superb *by V***E on April 9, 2026* This device works very well. My new PC had no SPDIF Optical out. Plugged this into a USB port and I now have crystal clean 24 Bit audio to listen to my music on the BIG speakers and my AV Amplifier. It's a more cost effective option than installing a PCI card in the computer. One minor issue: The first one I ordered had a short in the USB cable. The sound would stop under the weight of the Optical cable plugged into it. Hanging there caused a short. Must be manufacturing issue. Given the reasonable price, I just bought a second one and it works fine. Now I have two. One as a spare I guess. I can get the bad one to work if I hold up the cable in a manner to take the weight off the USB connecter. Strange issue, but I didn't bother to send it back. The cost of shipping wouldn't be worth it. It's a great product but needs better quality control in manufacturing. ### ⭐⭐⭐⭐⭐ Great Little Adapter, Huge Sound Difference *by T***T on November 10, 2025* I picked this up to improve the audio quality from my PC to my Samsung HW-S50B soundbar. Bluetooth just wasn’t cutting it, the sound was hollow, lacked bass, and didn't use the center speaker at all. This inexpensive adapter completely changed that. It was plug-and-play on Windows, I just had to switch my sound output from Bluetooth to SPDIF and I was good to go. Now I get clean, full sound with strong bass and much better center channel clarity. Movies and music actually sound how they should. Build quality feels solid too, no signal dropouts, and the optical connector fits snugly into my soundbar. The price is excellent for what it delivers, especially compared to some of the overpriced alternatives out there. If you're looking to squeeze better sound out of a setup that supports optical input, this adapter is a no-brainer over Bluetooth. ### ⭐⭐⭐⭐⭐ Perfect digital quality, no audible latency, works for years *by C***E on November 15, 2025* We have a bunch of these and used them for years and they're flawless and reliable. One we use to connect a PC to a TV, one to connect a PC to a speaker system. The third one I used (along with the Hifime UR23 SPDIF Optical to USB Converter) to construct a USB-to-TOSLINK-to-USB cable to connect my two Windows 11 laptops, then enabled "Listen to this device" on the Hifime on the receiving device. This let me listen to a perfect digital mix of both devices at the same time. It works great out of the box, no settings changes needed, no software or special drivers needed, no noise or hiss or ground loop, no audible latency, no volume reduction. It's perfect. ## Frequently Bought Together - 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 - KabelDirekt TOSLINK – Optical Audio Cable – 6ft – Fiber Optic Cord, S/PDIF Digital Audio Optical Cable for Soundbar, Stereo Systems, Home Cinema, Xbox One/PS4 – Designed in Germany - Cubilux USB A SPDIF Input Adapter for PC [Stereo Recording ONLY, NOT for Playing Audio] USB Optical Line-in Dongle, Toslink to USB Receiver, USB A SDPIF RX Interface Suitable for Laptop Computer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/452922278-cubilux-usb-a-to-toslink-optical-audio-adapter-unidirectional-usb](https://www.desertcart.co.za/products/452922278-cubilux-usb-a-to-toslink-optical-audio-adapter-unidirectional-usb) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-05-10*