Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC - two ways of downloading and installing the driver

Realtek 8821CU Wireless LAN 802.11ac USB NIC is a Network Adapters hardware device. This driver was developed by 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 download link is for the driver version 1030.12.0526.2016 dated 2016-11-11.
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3. Run the driver setup file from a Windows account with administrative rights. If your User Access Control (UAC) 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 setup wizard, which should be pretty easy to follow. The driver setup wizard will scan your PC for compatible devices and will install the driver.
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7. Restart your PC and enjoy the updated driver, as you can see it was quite smple.
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Realtek Semiconductor Corp. applied a digital signature to this driver.
File size of the driver: 1656165 bytes (1.58 MB)
This driver was installed by many users and received an average rating of 4.1 stars out of 98324 votes.
This driver is fully compatible with the following versions of Windows:

• This driver works on Windows Vista 32 bits
• This driver works on Windows 7 32 bits
• This driver works on Windows 8 32 bits
• This driver works on Windows 8.1 32 bits
• This driver works on Windows 10 32 bits
• This driver works on Windows 11 32 bits

2. The easy way: using DriverMax to install Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver

The most important advantage of using DriverMax is that it will setup the driver for you in just a few seconds and it will keep each driver up to date, not just this one. How easy can you install a driver using DriverMax? Let's follow a few steps!

1. Open DriverMax and press on the yellow button named ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to analyze each driver on your PC.
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3. Take a look at the list of driver updates. Scroll the list down 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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