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

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 1027.4.0630.2015 dated 2015-10-08.
2.  
3. Start the driver setup file from a Windows account with the highest privileges (rights). If your UAC (User Access Control) is running then you will have to confirm the installation of the driver and run the setup with administrative rights.
4.  
5. Follow the driver installation wizard, which should be quite straightforward. The driver installation wizard will scan your PC for compatible devices and will install the driver.
6.  
7. Restart your PC and enjoy the new driver, as you can see it was quite smple.
8.  

Realtek Semiconductor Corp. applied a digital signature to this driver.
Download size of the driver: 1552974 bytes (1.48 MB)
Driver rating 4.2 stars out of 63053 votes.
This driver was released 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. 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 install 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 with DriverMax? Let's follow a few steps!

1. Open DriverMax and click on the yellow button that says ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to analyze each driver on your computer.
2.  
3. Take a look at the list of driver updates. Search the list until you locate the Realtek Semiconductor Corp. Realtek 8821BU Wireless LAN 802.11ac USB NIC driver. Click on Update.
4.  
5. That's it, you installed your first driver!
6.