Wireless Adapter Yealink WF40 150 Mbit/s USB WLAN Wi-Fi 4

The Yealink WF40 Wi‑Fi USB Dongle is a compact wireless adapter that connects via USB and provides Wi‑Fi 4 (IEEE 802.11n) connectivity with a maximum data rate of 150 Mbit/s. Designed for office environments, the WF40 enables IP phones and other USB‑equipped devices to join existing wireless networks quickly and with minimal setup.

Advantages

The WF40 offers a small form factor, low power consumption and plug‑and‑play operation, allowing fast deployment without complex configuration. Compliance with IEEE 802.11b/g/n standards ensures broad compatibility and stable throughput, while the 150 Mbit/s transmission rate supports typical voice and data office tasks.

Suitable for

• Connecting IP phones to wireless networks
• Adding WLAN capability to USB devices in small offices
• Environments requiring simple, low‑power wireless adapters

Key specifications

• Brand: Yealink
• Model: WF40 (MPN: USB WF40)
• Interface: USB
• Standards: IEEE 802.11b / 802.11g / 802.11n (Wi‑Fi 4)
• Maximum data rate: 150 Mbit/s
• Colour: Black
• Connectivity technology: Wireless (WLAN)

How to use

Plug the Yealink WF40 into an available USB port on the target device and allow the host system to detect the adapter. For most modern systems the device will install and operate in plug‑and‑play mode. Use the host device’s network settings to select the local Wi‑Fi network and enter credentials as required. After connection, verify network quality and check that voice or data services operate as expected.

Recommendations

Place the WF40 in a USB port with unobstructed line of sight to the access point where possible, and avoid placing it near large metal objects or other strong RF sources to maximize signal strength and throughput.