Driver for Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC - downloading and installing it

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

1. Manually install Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver

1. You can download from the link below the driver setup file for the Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver. The archive contains version 1027.4.0630.2015 dated 2020-03-09 of the driver.
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3. Run the driver installer file from a user account with the highest privileges (rights). If your User Access Control (UAC) is started 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 PC in order to use the updated driver. It is as simple as that to install a Windows driver!
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This driver is digitally signed by the manufacturer.
File size of the driver: 2349798 bytes (2.24 MB)
This driver received an average rating of 4.8 stars out of 19082 votes.
This driver is fully compatible with the following versions of Windows:

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

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

1. Open DriverMax and click 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 available driver updates. Scroll the list down 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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