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 device. The developer of this driver was Realtek Semiconductor Corp.. USB/VID_0BDA&PID_C820&MI_02 is the matching hardware id of this device.

1. How to 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 link below. This is the download link for the driver version 1030.25.0701.2017 released on 2017-12-25.
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3. Run the driver setup file from a Windows account with administrative rights. If your User Access Control (UAC) is running then you will have to accept of the driver and run the setup with administrative rights.
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5. Follow the driver setup wizard, which should be pretty straightforward. The driver setup wizard will analyze your PC for compatible devices and will install the driver.
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7. 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 by the manufacturer.
The file size of this driver is 3142103 bytes (3.00 MB)
This driver was installed by many users and received an average rating of 4.1 stars out of 11377 votes.
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. Installing the Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver using DriverMax: the easy way

The 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. How easy can you install a driver with DriverMax? Let's take a look!

1. Start DriverMax and push 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 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. That's it, you installed your first driver!
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