Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver download and installation

Realtek 8821CU Wireless LAN 802.11ac USB NIC is a Network Adapters hardware device. The Windows version of this driver was developed by Realtek Semiconductor Corp.. In order to make sure you are downloading the exact right driver the hardware id is USB/VID_0BDA&PID_C820&MI_02.

1. Manually install Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver

1. Download the setup file for Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver from the location below. This is the download link for the driver version 1030.21.0302.2017 dated 2017-08-04.
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3. Start the driver setup file from a Windows account with the highest privileges (rights). If your UAC (User Access Control) is enabled then you will have to confirm the installation of the driver and run the setup with administrative rights.
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5. Follow the driver installation wizard, which should be pretty easy to follow. The driver installation wizard will analyze your PC for compatible devices and will install the driver.
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7. Restart your PC and enjoy the fresh driver, it is as simple as that.
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Realtek Semiconductor Corp. applied a digital signature to this driver.
Download size of the driver: 2786671 bytes (2.66 MB)
This driver was rated with an average of 4.4 stars by 1900 users.
This driver is fully compatible with the following versions of Windows:

• This driver works on Windows 8.1 64 bits
• This driver works on Windows 10 64 bits
• This driver works on Windows 11 64 bits

2. How to install Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver using DriverMax

The most important advantage of using DriverMax is that it will install the driver for you in the easiest possible way and it will keep each driver up to date. How easy can you install a driver using DriverMax? Let's follow a few steps!

1. Start DriverMax and press on the yellow button that says ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to analyze each driver on your computer.
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3. Take a look at the list of detected driver updates. Search the list until you find the Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver. Click the Update button.
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5. Finished installing the driver!
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