Wi-Fi USB Dongle WF40 is a low-power, small form factor device that can be implemented within offices for seamlessly connecting their IP phones to available wireless networks. This dynamic plug-and-play style USB device is an ideal office networking solution for companies—particularly, smaller organizations—seeking affordable, convenient and reliable high-speed wireless connectivity. Supported by a powerful transmission rate of 150 Mbps, the solution is able to quickly and reliably establish Wi-Fi connectivity so that users can optimally communicate, collaborate, access pertinent documents and resources and more. Wi-Fi USB Dongle WF40 is a safe, reliable and easy deployment, which guarantees a flexible and optimal user experience. Even more, Wi-Fi USB Dongle WF40 is compliant with the IEEE 802.11n and IEEE 802.11b/g standards, maximizing reliability and throughput. Features and Benefits Supports Yealink SIP-T27G/T29G/T46G/T48G/T41S/T42S/T46S/T48S/T52S/T54S/T53 For T48G: upgrade to the version of 35.80.0.95 or higher For T29G/T46G/T46S/T48S: upgrade to the version 81 or higher For T27G/T41S/T42S: upgrade to the version of x.81.0.110 or higher Reliable Connection Ease-of-use Plug and Play High Transmission Rate Lower Power Consumption Network Standard:IEEE802.11b/g/n Transmission Rate:150 Mbps Frequency Range: 2.4GHz Security:64/128/152-bit WEP Encryption, WPA-PSK,WPA2-PSK Interface: USB2.0 L*W*H: 26.9mm*18mm*8mm Working Temperature: 0°C ~ +40°C ( 32°F ~ 104°F) Storage Temperature: -40°C ~+85°C (-40°F ~ 185°F) In the box WF40 WiFi USB Dongle