# Power adapter Yealink 115778 — universal EU plug, replacement power supply for Yealink devices

**URL:** https://aio.lv/en/product--yealink-115778--509165
**Data updated:** 2026-01-13 15:24 (EET)
**Category:** Electronics Accessories
**Manufacturer:** Yealink
**Manufacturer code:** 115778
**EAN:** 5711783934431
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 15.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--yealink-115778--509165

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Power adapter Yealink 115778 is a replacement power supply with a universal EU plug designed for use with compatible Yealink devices. It provides mains-to-device power conversion and is suitable for replacing lost or damaged adapters. Use cases include powering IP phones or other Yealink hardware requiring the specified adapter. Practical benefits: ensures device uptime and avoids compatibility issues with non-original supplies.

## Long description

Power adapter Yealink 115778 — universal EU plug, replacement power supply for Yealink devices is a replacement mains adapter designed to provide stable power to compatible Yealink products. The unit converts AC mains voltage to the required DC output for supported devices and is intended as a direct replacement for lost, damaged, or non-functioning original adapters. The adapter features a universal EU plug format and is suitable for environments where an original Yealink power supply is preferred to ensure reliable operation.
Advantages
This replacement power supply offers consistent voltage regulation and a form factor compatible with Yealink devices that accept the same connector and electrical parameters. Using an original-design adapter reduces the risk of incompatibility or insufficient power delivery that can cause device instability, reduced functionality, or damage. The EU plug design matches standard European sockets, simplifying installation without additional converters.
Suitable for
Powering compatible Yealink IP desk phones
Replacing lost or damaged original power adapters
Providing spare power supply units for office deployments
Use in European installations with standard EU mains sockets
Key specifications
Plug type: universal EU plug for European mains outlets
Function: mains-to-DC power conversion for compatible Yealink devices
Compatibility: designed for Yealink hardware models that require this style of external power supply
Form factor: compact external adapter suitable for desktop or wall use
Safety: built to meet typical safety and insulation requirements for external power supplies
How to use
Ensure the adapter's connector and output specifications match the requirements of your Yealink device before connecting. Insert the EU plug into a suitable mains outlet and connect the DC plug to the device's power input. After connection, power on the device and verify normal operation. If the device does not power on or shows errors, disconnect immediately and check compatibility and outlet function.
Usage recommendations
Use the adapter in dry indoor environments and avoid exposure to liquids or extreme temperatures. Use only with devices that specify support for this type of external power supply and avoid using damaged cables or connectors. For installations requiring surge protection or uninterruptible power, consider additional protective equipment to safeguard the connected device.

## FAQ

### How much does the Yealink 115778 power adapter cost, and is it available for purchase?

The price is 18.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 342 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 09.07.2026 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: Cash payment, 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 Yealink 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 Yealink 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/509165/49112336_large.webp