Comtrend CT-WN4320Z is a legacy 802.11g USB 2.0 Wireless Network Adapter. Because of its age, modern operating systems may require specific manual steps or older chipset-specific drivers to function properly. Comtrend Corporation 1. Identify the Chipset This adapter typically uses the ZyDAS ZD1211 chipset. To confirm yours: Raspberry Pi Forums Device Manager , right-click the adapter > Properties Hardware IDs . Look for USB\VID_0CF3&PID_0002 USB\VID_168C&PID_0002 in the terminal to see if it lists "ZyDAS ZD1211 802.11g". Raspberry Pi Forums 2. Windows Installation (XP through Windows 11)
Windows 10 and 11 do not have built-in drivers for this specific legacy device. You must use compatible Atheros or ZyDAS driver packages. Manual Install Download the Atheros netathrxusb.inf
driver (Version 2.2.0.27 is often recommended for compatibility) from a repository like Driver Scape Extract the ZIP folder. Device Manager , right-click the unknown "WLAN USB 2.0" device and select Update driver Browse my computer for drivers and point to the folder containing the Auto-Update : Alternatively, utilities like Driver Talent
can scan and automatically match the required legacy driver. 3. Linux Installation The CT-WN4320Z is supported via the zd1211-firmware Raspberry Pi Forums Ubuntu/Debian/Raspberry Pi OS Open Terminal. sudo apt-get update sudo apt-get install zd1211-firmware
Unplug and re-insert the USB dongle. It should be recognized immediately as a wireless interface. Raspberry Pi Forums 4. Usage Tips Driver Wlan Usb 2.0 Ct-wn4320z
: Plug the adapter directly into the motherboard (back of the PC) rather than a front USB port or unpowered hub to avoid signal loss and overheating. Limitations : As an 802.11g device, the maximum data rate is
. It may not be compatible with modern WPA3 security protocols used by newer routers. Which operating system
are you currently trying to set this up on so I can provide the exact driver link? Wi-Fi dongle ct-wn4320z - Raspberry Pi Forums
Comtrend CT-WN4320Z is a legacy USB 2.0 802.11g WLAN adapter primarily based on the ZyDAS ZD1211 Comtrend CT-WN4320Z is a legacy 802
chipset. Because this device is from the mid-2000s, modern operating systems like Windows 10 and 11 often require manual driver installation or specific legacy firmware to function. Raspberry Pi Forums Hardware Specifications ZyDAS ZD1211 (WI1 chip) and RFMD RF2959 (WI2 chip). Interface: USB 2.0 (Male A connector). Standards: IEEE 802.11b/g (54 Mbps max data rate). Frequency: 2.4 GHz band. Hardware ID: USB\VID_0ACE&PID_1211 Supports WEP (64/128/256-bit), TKIP, AES, WPA, and WPA2. WikiDevi.Wi-Cat.RU Driver & Installation Guide Windows (XP, 7, 8, 10, 11)
Official manufacturer support for this device has largely ended. To install it on modern Windows versions: Manual Update: Connect the adapter, open Device Manager , find the device under "Other devices," and select Update Driver Browse my computer for drivers Compatibility:
Some users report success using generic 802.11g WLAN drivers from repositories like Driver Scape (Version 2.0.0.70) or Troubleshooting: If the device is not detected, use the Hardware and Devices troubleshooter
or a powered USB hub if using low-power devices like a Raspberry Pi. Raspberry Pi Forums Linux (including Raspberry Pi) Wi-Fi dongle ct-wn4320z - Raspberry Pi Forums Check the "Wireless Network Connection" status in Control
Cause: The adapter may be in "Monitor mode" or disabled via software switch. Solution:
Fn + F2 (or similar) on laptops to ensure hardware Wi-Fi switch is on.This guide shows how to find and install drivers for the CT-WN4320Z USB 2.0 wireless adapter on Windows and Linux. Assumes adapter uses a common Realtek/MediaTek chipset (many CT-WN series devices do); steps include identifying the chipset, downloading the correct driver, installing, and troubleshooting.
The CT-WN4320Z is a compact, low-profile USB 2.0 wireless network adapter. It is designed to add 802.11 b/g/n Wi-Fi capabilities to any computer with a USB port. Key specifications include:
This adapter is popular because of its low cost, plug-and-play capability on some systems, and decent range for basic browsing, email, and standard-definition streaming.