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 developer of this driver was Realtek Semiconductor Corp.. USB/VID_0BDA&PID_B821 is the matching hardware id of this device.

1. Install Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver manually

1. Download the driver setup file for Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver from the link below. This is the download link for the driver version 1030.11.0503.2016 dated 2016-10-26.
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3. Run the driver installation file from a Windows account with the highest privileges (rights). If your UAC (User Access Control) is started 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 straightforward. The driver installation wizard will scan your PC for compatible devices and will install the driver.
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7. Shutdown and restart your computer and enjoy the fresh driver, as you can see it was quite smple.
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This driver is digitally signed.
Download size of the driver: 2394796 bytes (2.28 MB)
This driver was rated with an average of 4.9 stars by 73570 users.
This driver is fully compatible with the following versions of Windows:

• 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 setup the driver for you in the easiest possible way and it will keep each driver up to date. How can you install a driver using DriverMax? Let's follow a few steps!

1. Start DriverMax and click on the yellow button named ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to scan and 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 locate the Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver. Click the Update button.
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5. That's all, the driver is now installed!
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