Realtek 8821CU USB wireless network adapter

modulename: rtw88_8821cu.ko

configname: CONFIG_RTW88_8821CU

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wireless LAN
└─>Realtek 802.11ac wireless chips support
└─>Realtek 8821CU USB wireless network adapter
In linux kernel since version 6.2 (release Date: 2023-02-19)  
Select this option will enable support for 8821CU chipset

802.11ac USB wireless network adapter

source code: