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

Realtek 8821BU Wireless LAN 802.11ac USB NIC is a Network Adapters device. This Windows driver was developed by Realtek Semiconductor Corp.. USB/VID_0BDA&PID_B821 is the matching hardware id of this device.

1. Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver - how to install it manually

1. You can download from the link below the driver installer file for the Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver. The archive contains version 1027.1.0902.2014 released on 2014-10-13 of the driver.
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3. Run the driver installer file from a user account with the highest privileges (rights). If your UAC (User Access Control) is running please confirm the installation of the driver and run the setup with administrative rights.
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5. Go through the driver installation wizard, which will guide you; it should be pretty easy to follow. The driver installation wizard will analyze your PC and will install the right driver.
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7. When the operation finishes restart your computer in order to use the updated driver. As you can see it was quite smple to install a Windows driver!
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This driver is digitally signed.
The file size of this driver is 1658303 bytes (1.58 MB)
This driver received an average rating of 4.9 stars out of 97453 votes.
This driver is fully compatible with the following versions of Windows:

• 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. How to install Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver using DriverMax

The 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. How can you install a driver using DriverMax? Let's follow a few steps!

1. Open DriverMax and push on the yellow button named ~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 available driver updates. Search the list until you locate the Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver. Click on Update.
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5. Enjoy using the updated driver! :)
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