RTL8821CU
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Wifi + Bluetooth USB controller by Realtek.
General Description
802.11ac/abgn USB WLAN with Bluetooth 4.2 Single-Chip Controller
The Realtek RTL8821CU-CG is a highly integrated single-chip that supports 1-stream 802.11ac solutions with Multi-user MIMO (Multiple-Input, Multiple-Output) and Wireless LAN (WLAN) with integrated Bluetooth 2.1/3.0/4.2 USB-multi interface controller. It combines a WLAN MAC, a 1T1R capable WLAN baseband, and RF in a single chip. The RTL8821CU-CG provides a complete solution for a high-performance integrated wireless and Bluetooth device.[1]