# UGREEN CM477 audio adapter USB to 3.5 mm mini-jack (grey) — model 30757

**URL:** https://aio.lv/en/product--ugreen-30757--4363793
**Data updated:** 2026-03-07 11:13 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** UGREEN
**Manufacturer code:** 30757
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-07 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ugreen-30757--4363793

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

UGREEN CM477 audio adapter converts a USB port to a 3.5 mm mini‑jack for connecting headphones, speakers or AUX inputs. Supplied in grey, this compact adapter provides a simple wired audio interface where a 3.5 mm output is required. It is intended for basic audio transmission between USB‑equipped devices and analog audio equipment.

## Long description

The UGREEN CM477 audio adapter USB to 3.5 mm mini-jack (grey) — model 30757 converts a USB port into a standard 3.5 mm analog audio output. This compact adapter enables wired connection of headphones, earphones, portable speakers or vehicle AUX inputs to devices that have a USB-A port but lack a dedicated headphone jack. The adapter is designed for straightforward basic audio transmission and is supplied in a neutral grey finish suitable for everyday use.
Advantages
This adapter offers a plug-and-play solution that requires no additional drivers on most operating systems, providing a quick way to add an analog audio output via USB. Its small footprint makes it easy to carry and store, and the 3.5 mm mini-jack is compatible with a wide range of headphones and external speakers. The product is intended for simple, reliable audio transfer from USB-equipped devices to analog audio equipment.
Suitable for
 Connecting wired headphones to laptops, desktops or tablets with USB-A ports
 Feeding analog audio into car stereos or portable speakers with AUX inputs
 Replacing a missing or broken 3.5 mm jack on computers and some mobile devices
 Basic voice and music playback where a simple wired connection is sufficient
Key specifications
 Input: USB-A connection for host device
 Output: 3.5 mm stereo mini-jack for headphones or line-in
 Function: Digital-to-analog audio conversion for basic stereo playback
 Dimensions: compact, pocket-sized form factor for portability
 Color: grey housing
How to use
Insert the USB-A plug of the UGREEN CM477 adapter into an available USB port on your computer, laptop or other USB-equipped device. Connect headphones, earphones or an AUX cable to the 3.5 mm mini-jack on the adapter. The device should be recognized automatically on most systems; select the USB audio output in the operating system's sound settings if required. Start playback from your media application or system audio to verify sound output through the connected analog device.
Usage recommendations
For best results, use the adapter with standard impedance headphones or line-level AUX inputs. Avoid exposing the adapter to moisture and disconnect it before moving the host device. If no audio is heard, check system sound settings and application output selection; reconnect the adapter or try another USB port if necessary.

## FAQ

### How much does the UGREEN CM477 USB to 3.5 mm audio adapter cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All UGREEN products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized UGREEN service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4363793/51342900_large.webp