The Realtek RTL8821AE-VB-CG is a highly integrated single-chip that supports 1-stream 802.11ac solutions with Wireless LAN (WLAN) PCI Express network interface controller and integrated Bluetooth 2.1/3.0/4.0 USB interface controller. It combines a WLAN MAC, a 1T1R capable WLAN baseband, and RF in a single chip. The RTL8821AE-VB-CG provides a complete solution for a high-performance integrated wireless and Bluetooth device.
- QFN-68 package
- 802.11ac Draft 2.0 1T1R
- Bluetooth 4.0
- Mini PCI Express 1.1 for WLAN controller
- USB1.1 for Bluetooth controller
Some have tried to use this WiFi device on Lenovo, Dell and HP machines only to discover the BIOS will refused to allow it to operate. They hide behind FCC regulations but the right to repair is also infringed.
Lenovo machines have had the BIOS fixed and posted to be able to circumvent the problem. Most likely other machines also have options.
Most installed this WiFi card to overcome the incompatible Intel logic wich was limited to 802.11b and 802.11g due to the incompatible 802.11n design.
The RTL8821AE supports AC433 speeds which are adequate for general purpose use. Vendors now have variants that are configured with the device ID needed for Lenovo and other machines.