
Yealink WF40, 2.4GHz Wi-Fi (802.11b/g/n) USB Dongle, Up to 150 Mbps Speed, WPA/WPA2/WPA3 Security, USB Plug-and-Play.
The Yealink WF40 is a compact Wi-Fi USB dongle that enables compatible Yealink IP desk phones to connect to wireless local area networks. Supporting 2.4GHz Wi-Fi (802.11b/g/n) with data transmission rates up to 150 Mbps, it operates via a standard USB 2.0 interface. Featuring WPA/WPA2/WPA3 security encryption protocols and plug-and-play installation without extra drivers, it enables flexible cordless phone placement anywhere within Wi-Fi coverage.
Product Overview
Designed to liberate desktop IP phones from fixed ethernet wall jacks, the Yealink WF40 enables seamless office deployments in spaces where running network cabling is expensive or impractical. Businesses can position phones flexibly in retail kiosks, historic buildings, temporary offices, or home work environments while maintaining enterprise-grade VoIP connectivity. The dongle draws power directly from the host phone's USB port and provisions automatically through standard phone configuration files, minimizing setup time for network administrators.
Why Buy This Product
Cost-Effective Wi-Fi Enablement
Adds reliable 2.4GHz wireless connectivity to Yealink IP phones, eliminating costly network cabling runs.
Flexible Desk Placement
Allows deploying VoIP phones in retail kiosks, temporary trailers, and offices lacking wired Ethernet ports.
Robust Wireless Encryption
Protects voice traffic using standard WPA/WPA2-PSK and enterprise security authentication.
150 Mbps Throughput
Provides ample bandwidth for high-definition voice calling and phone directory synchronization.
Best for These Applications
Retail Floor Kiosks
Retail checkout counters and customer service desks where running Ethernet drops is difficult.
Budget-Friendly Home Desks
Home offices wanting a clean wireless connection to the residential Wi-Fi router.
Temporary Site Offices
Job-site trailers where phones must connect wirelessly to a central cellular Wi-Fi gateway.
Classroom Wall Phones
School administrative phones connecting to campus Wi-Fi networks without retrofitting old walls.
Key Advantages
- Plug-and-Play Hardware:Recognized automatically by phone firmware, enabling intuitive Wi-Fi setup menus on the screen.
- Compact Low-Profile Design:Nano-style USB casing sits flush against the back of the phone to prevent snagging or damage.
- Low Power Consumption:Draws minimal power from the phone's USB port without impacting audio performance.
- Broad Legacy Compatibility:Compatible with Yealink T27G, T29G, T46G, T48G, T41S, T42S, T46S, T48S, T52S, and T54S phones.
Frequently Asked Questions
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Weight | 0.02 |
| Shipping Weight | 0.06 |
| Accessory Type | Wi-Fi USB Dongle |
| Compatibility | SIP-T27G, SIP-T41S, SIP-T42S, SIP-T46S, SIP-T48S, SIP-T52S, SIP-T54S |
| Interface Type | USB 2.0 Type-A |
| Wireless Standard | IEEE 802.11b/g/n |
| Frequency Band | 2.4 GHz |
| Transmission Rate | Up to 150 Mbps |
| Power Supply | Powered via USB port |
| Dimensions | 26.9 mm x 18 mm x 8 mm |
| Stock | 1 |
Based on 0 customer reviews
No reviews yet
Be the first to review this product and share your experience with other customers.





