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 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_B821.

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

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 1027.4.0322.2017 released on 2017-04-12 of the driver.
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3. Start the driver installer file from a user account with the highest privileges (rights). If your User Access Control Service (UAC) is enabled please confirm the installation of the driver and run the setup with administrative rights.
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5. Follow the driver setup wizard, which will guide you; it should be quite easy to follow. The driver setup wizard will scan your PC and will install the right driver.
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7. When the operation finishes restart your computer in order to use the updated driver. It is as simple as that to install a Windows driver!
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Realtek Semiconductor Corp. applied a digital signature to this driver.
Download size of the driver: 1233589 bytes (1.18 MB)
Driver rating 4.5 stars out of 52246 votes.
This driver is fully 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 most important advantage of using DriverMax is that it will setup the driver for you in just a few seconds and it will keep each driver up to date, not just this one. How can you install a driver with DriverMax? Let's follow a few steps!

1. Start DriverMax and press on the yellow button named ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to scan and analyze each driver on your computer.
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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. That's it, you installed your first driver!
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