---
title: "Yealink WF40"
description: "Give a compatible Yealink desk phone a simple wireless connection. The WF40 is a small plug-and-play USB dongle that suits offices wanting steady Wi-Fi without extra fuss. It supports a range of Yealink SIP phones and uses 2.4GHz Wi-Fi."
url: "https://dev.www.lightningip.com.au/hardware/yealink-wf40"
canonical: "https://dev.www.lightningip.com.au/hardware/yealink-wf40"
updated: "2026-10-24"
---

# Yealink WF40

Wi-Fi USB dongle for Yealink desk phones

Give a compatible Yealink desk phone a simple wireless connection. The WF40 is a small plug-and-play USB dongle that suits offices wanting steady Wi-Fi without extra fuss. It supports a range of Yealink SIP phones and uses 2.4GHz Wi-Fi.

- **Brand:** Yealink
- **Category:** Phone accessories
- **Price:** $56
- **Stock status:** In stock
- **Order:** [Contact sales](https://dev.www.lightningip.com.au/contact)

## Features

- Plug-and-play USB setup
- 2.4GHz Wi-Fi support
- 150 Mbps wireless rate
- Fits supported Yealink phones

## Specifications

| Specification | Value |
| --- | --- |
| Product type | Wi-Fi USB dongle |
| Wireless standard | IEEE 802.11b/g/n |
| Frequency band | 2.4GHz |
| Data rate | 150 Mbps |
| Interface | USB 2.0 |
| Supported phones | Yealink SIP-T27G, T29G, T46G, T48G, T41S, T42S, T46S, T48S, T42U, T43U, T44U, T46U, T48U, T52S, T54S, T53 |
| Security | WEP 64/128/152-bit, WPA-PSK, WPA2-PSK |
| Dimensions | 26.9 mm x 18 mm x 8 mm |
| Warranty | 12 months |