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

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.. The hardware id of this driver is USB/VID_0BDA&PID_B821.

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

1. Download the setup file for Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver from the link below. This is the download link for the driver version 1027.4.1120.2014 released on 2015-02-18.
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3. Run the driver setup file from a Windows account with administrative rights. If your User Access Control Service (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 setup wizard, which should be quite straightforward. The driver setup wizard will scan your PC for compatible devices and will install the driver.
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7. Shutdown and restart your PC and enjoy the fresh driver, as you can see it was quite smple.
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This driver is not digitally signed.
The file size of this driver is 1533009 bytes (1.46 MB)
This driver was installed by many users and received an average rating of 3.4 stars out of 53626 votes.
This driver will work for the following versions of Windows:

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

The 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 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 PC.
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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 8821BU Wireless LAN 802.11ac USB NIC driver. Click on Update.
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5. Finished installing the driver!
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