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 hardware device. The Windows version of this driver was developed by Realtek Semiconductor Corp.. The hardware id of this driver is USB/VID_0BDA&PID_B82B; this string has to match your hardware.

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 download link is for the driver version 1027.4.0505.2015 released on 2015-05-05.
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3. Start the driver setup file from a Windows account with administrative rights. If your User Access Control Service (UAC) is started then you will have to accept of the driver and run the setup with administrative rights.
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5. Follow the driver installation wizard, which should be quite easy to follow. 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 new driver, it is as simple as that.
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This driver is digitally signed by Realtek Semiconductor Corp..
Download size of the driver: 1726314 bytes (1.65 MB)
This driver was rated with an average of 4.6 stars by 41032 users.
This driver will work for 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. Using DriverMax to install Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver

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

1. Start DriverMax and press 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 driver updates. Search the list until you find the Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver. Click the Update button.
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5. Finished installing the driver!
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