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.. In order to make sure you are downloading the exact right driver the hardware id 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 1027.0.0611.2014 dated 2014-08-15 of the driver.
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3. Run 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 installation wizard, which will guide you; it should be pretty easy to follow. The driver installation wizard will scan your computer and will install the right driver.
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7. When the operation finishes restart your PC in order to use the updated driver. It is as simple as that to install a Windows driver!
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This driver is not digitally signed.

This driver was rated with an average of 3.1 stars by 70863 users.

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 just a few seconds and it will keep each driver up to date, not just this one. How easy can you install a driver with DriverMax? Let's see!

1. Open 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 available driver updates. Scroll the list down until you locate 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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