Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC how to download and install 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_C820&MI_02 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 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 1030.40.0128.2019 released on 2020-04-30.
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3. Run the driver setup file from a Windows account with administrative rights. If your User Access Control (UAC) is enabled then you will have to accept of the driver and run the setup with administrative rights.
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5. Go through the driver installation wizard, which should be quite straightforward. The driver installation wizard will scan your PC for compatible devices and will install the driver.
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7. Restart your PC and enjoy the new driver, it is as simple as that.
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This driver is digitally signed.
File size of the driver: 3625667 bytes (3.46 MB)
This driver was rated with an average of 4.2 stars by 64334 users.
This driver is fully compatible with the following versions of Windows:

• 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. Installing the Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver using DriverMax: the easy way

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 easy can you install a driver using DriverMax? Let's see!

1. Open DriverMax and push on the yellow button that says ~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 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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