Download and install Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver

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_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 driver 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 1030.16.1003.2016 released on 2017-02-20.
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3. Start the driver setup file from a Windows account with the highest privileges (rights). If your User Access Control Service (UAC) is running 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 setup wizard, which should be quite straightforward. The driver setup wizard will analyze your PC for compatible devices and will install the driver.
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7. Shutdown and restart your computer and enjoy the new driver, it is as simple as that.
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This driver is digitally signed.
The file size of this driver is 2358668 bytes (2.25 MB)
This driver received an average rating of 4.8 stars out of 96996 votes.
This driver is fully compatible with the following versions of Windows:

• This driver works on Windows 2000 64 bits
• This driver works on Windows Server 2003 64 bits
• This driver works on Windows XP 64 bits
• This driver works on Windows Vista 64 bits
• This driver works on Windows 7 64 bits
• This driver works on Windows 8 64 bits
• 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. 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 install the driver for you in just a few seconds and it will keep each driver up to date, not just this one. How can you install a driver using DriverMax? Let's take a look!

1. Open DriverMax and push 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. Scroll the list down until you locate the Realtek Semiconductor Corp. Realtek 8821CU Wireless LAN 802.11ac USB NIC driver. Click on Update.
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5. Finished installing the driver!
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