Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver download and installation

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_B82B is the matching hardware id of this device.

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

1. Download the driver setup file for Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver from the location below. This download link is for the driver version 1027.4.0322.2017 dated 2017-04-12.
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3. Start the driver installation file from a Windows account with the highest privileges (rights). If your UAC (User Access Control) is enabled then you will have to confirm the installation of the driver and run the setup with administrative rights.
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5. Follow the driver installation wizard, which should be quite straightforward. The driver installation wizard will analyze your PC for compatible devices and will install the driver.
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7. Restart your PC and enjoy the updated driver, it is as simple as that.
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This driver is digitally signed by the manufacturer.
The file size of this driver is 1233589 bytes (1.18 MB)
Driver rating 4.8 stars out of 52258 votes.
This driver is compatible with the following versions of Windows:

• This driver works on Windows Vista 32 bits
• 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 8821BU Wireless LAN 802.11ac USB NIC driver using DriverMax: the easy way

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 follow a few steps!

1. Start 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 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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