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Small white USB Wi-Fi dongle with matte finish

Yealink Network Technology Co., Ltd

Yealink Network Technology Co., Ltd YEA-WF40 telephone accessory

SKU CH-3M0Y-90ZRZ MPN YEA-WF40

A Wi-Fi USB dongle adding 2.4 GHz 802.11b/g/n wireless connectivity at 150 Mbps to compatible Yealink SIP-T48G IP phones

  • TypeWi-Fi USB Dongle
  • SpecificationsNetwork Standard:IEEE802.11b/g/n Transmission Rate:150 Mbps
  • FeaturesSupports Yealink SIP-T48G(upgrade to the version of 35.80.0.
  • Plug-and-play Wi-Fi for compatible Yealink SIP phones
  • 150 Mbps throughput on 2.4 GHz IEEE 802.11b/g/n networks
  • WEP, WPA-PSK and WPA2-PSK encryption protects calls
  • USB 2.0 interface draws minimal power
  • Works with SIP-T48G running firmware 35.80.0.95 or higher

Yealink WF40 Wi-Fi USB Dongle

The Yealink WF40 is a USB 2.0 Wi-Fi dongle that adds wireless connectivity to compatible Yealink IP phones. It supports IEEE 802.11b/g/n standards on the 2.4 GHz band with a maximum transmission rate of 150 Mbps. The adapter draws power directly from the phone's USB port and operates between 0 and 50 °C.

Suitable for offices without wired Ethernet

This dongle suits administrators deploying Yealink SIP-T48G phones running firmware 35.80.0.95 or later where cabling is impractical. It offers WEP, WPA-PSK and WPA2-PSK encryption for secure connections. Buyers needing 5 GHz band support, higher throughput than 150 Mbps, or compatibility with non-Yealink devices should consider other solutions.

Plug-and-play integration for SIP-T48G handsets

Insert the dongle into the phone's USB 2.0 port and configure the wireless network through the handset menu — no driver installation is required. The low-power design does not burden the phone's power budget. A free USB port on the IP phone is the only prerequisite for operation.

Highlights

  • Plug-and-play Wi-Fi for compatible Yealink SIP phones
  • 150 Mbps throughput on 2.4 GHz IEEE 802.11b/g/n networks
  • WEP, WPA-PSK and WPA2-PSK encryption protects calls
  • USB 2.0 interface draws minimal power
  • Works with SIP-T48G running firmware 35.80.0.95 or higher

Specifications

BrandYealink
ModelYEA-WF40
TypeWi-Fi USB Dongle
SpecificationsNetwork Standard:IEEE802.11b/g/n
Transmission Rate:150 Mbps
Frequency Range: 2.4 GHz
Security:64 / 128 / 152-bit WEP Encryption, WPA-PSK, WPA2-PSK
Interface: USB2.0
Working Temperature: 0 degree C ~ +50 degree C ( 32 degree F ~ 122 degree F)
Storage Temperature: -40 degree C ~+85 degree C (-40 degree F ~ 185 degree F)
FeaturesSupports Yealink SIP-T48G(upgrade to the version of 35.80.0.95 or higher)
Reliable Connection
Ease-of-use
Plug and Play
High Transmission Rate
Lower Power Consumption
Shipping weight0.32 kg
Package size241 × 197 × 95 mm

Questions about this item

Which Yealink IP phones work with the WF40 Wi-Fi USB dongle?

The dongle supports the Yealink SIP-T48G when it is upgraded to firmware version 35.80.0.95 or higher.

Can I keep using the WF40 if my network only runs on the 2.4 GHz band?

Yes, the dongle operates exclusively on the 2.4 GHz frequency range using IEEE 802.11b/g/n standards.

What transmission rate should I see on the WF40 when it is connected and working correctly?

The dongle delivers up to 150 Mbps over its USB 2.0 interface when linked to a compatible 2.4 GHz network.

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