# Audio converter InLine 33054E USB-C to 3.5 mm with built‑in DAC, 15 cm cable

**URL:** https://aio.lv/en/product--inline-33054e--12404796
**Data updated:** 2026-05-01 23:26 (EEST)
**Category:** USB Data Cables
**Manufacturer:** InLine
**Manufacturer code:** 33054E
**EAN:** 4043718350131
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.49 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 20.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--inline-33054e--12404796

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

InLine 33054E is a USB-C to 3.5 mm audio converter featuring a built‑in DAC for digital-to-analog audio conversion. Supplied with a 15 cm lead, it provides a plug-and-play solution for connecting headphones or analogue audio devices to USB-C phones, tablets and laptops that lack a headphone jack. Ideal for listening, conferencing and basic audio monitoring.

## Long description

InLine 33054E USB-C to 3.5 mm with built‑in DAC, 15 cm cable is an active audio adapter that converts digital USB-C audio output to analogue via an integrated Conexant CX21988 codec. The compact aluminium-bodied adapter includes a 15 cm shielded cable and a 3.5 mm female jack that supports both audio output and microphone input. It is designed as a plug-and-play solution for smartphones, tablets and laptops without a dedicated headphone socket and enables high-resolution playback and reliable headset communication.
Advantages
The built-in DAC provides up to 96 kHz / 24‑bit digital-to-analogue conversion, while the ADC supports 48 kHz / 16‑bit microphone input, reducing distortion and signal loss for clearer sound. With a measured signal-to-noise ratio of 100 dB and THD+N of -85 dB, the adapter delivers clean and detailed audio reproduction. The adapter supports both CTIA and OMTP headset wiring standards and automatically detects insertion/removal of headphones. Its aluminium housing and shielded flexible cable improve durability and stable signal transmission. No additional drivers are required for most devices, enabling immediate plug-and-play use.
Suitable for (tasks / use cases)
Listening to music from USB-C smartphones, tablets and laptops that lack a headphone jack
Using stereo headsets with microphone for voice calls or video conferencing
Basic on-the-go audio monitoring and playback with consumer headphones (typically around 32 Ω)
Connecting analogue speakers or portable audio equipment with a 3.5 mm input
When it may not be suitable
This adapter is not a professional studio interface and does not replace multi-channel audio interfaces or devices that require balanced XLR or TRS connections. Users requiring ultra-high-end audiophile amplification, headphone amplifiers with high output power, or multi-channel routing should consider dedicated audio equipment. Compatibility with very old or non-standard USB-C implementations or proprietary smartphone audio modes cannot be guaranteed.
Key specifications
Codec chip: Conexant CX21988
Digital-to-analogue conversion (DAC): up to 96 kHz / 24 bit
Analogue-to-digital conversion (ADC) for microphone: 48 kHz / 16 bit
Signal-to-noise ratio (SNR): 100 dB
Total harmonic distortion plus noise (THD+N): -85 dB
Crosstalk suppression: -50 dB
Headphone compatibility: CTIA and OMTP wiring standards
Typical matching headphone impedance: ~32 ohms
Cable length: 15 cm, shielded and flexible
Housing material: aluminium
Connector: USB-C male to 3.5 mm female jack
How to use
Connect the USB-C plug to a compatible phone, tablet or laptop and insert your 3.5 mm headphones or headset into the adapter jack. The device should recognize the adapter automatically and switch audio output to the connected headphones without installing drivers on most systems. For headsets with a microphone, the ADC handles voice input; select the adapter as the audio input device in your communication application if needed. To disconnect, remove the headphones and unplug the USB-C connector.
What to consider before purchase
Ensure your device supports USB-C audio output and standard USB-C accessory operation
Check whether your headset uses CTIA or OMTP wiring if microphone functionality is required
Consider headphone impedance and sensitivity; very low-impedance or high-power headphones may need a dedicated amplifier
Not intended as a multi-channel or professional audio interface
Usage recommendations
For best results, use with consumer headphones around 32 ohms and keep the 15 cm cable free from sharp bends. When using the microphone, confirm the adapter is selected as the input in your app settings. Avoid connecting to devices with non-standard USB-C implementations; if no audio is detected, try a different host device or check for software restrictions on USB audio output.

## Specifications

### Packaging data

| Feature | Value |
|---|---|
| Package depth | 17 mm |
| Package height | 135 mm |
| Package width | 100 mm |

## FAQ

### How much does the InLine 33054E USB-C to 3.5 mm audio converter cost, and is it available for purchase?

The price is 24.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 422 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 07.07.2026 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. 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 InLine 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 InLine 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/12404796/68696616_large.webp