802.11ac/abgn SDIO WLAN with Bluetooth 4.2 Single-Chip Controller

General Description

The Realtek RTL8821CS-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) SDIO interface controller with integrated Bluetooth 2.1/3.0/4.2 HS-UART interface controller. It combines a WLAN MAC, a 1T1R capable WLAN baseband, and RF in a single chip. The RTL8821CS-CG provides a complete solution for a high-performance integrated wireless and Bluetooth device.


  • TFBGA 5.2x5.2mm package
  • 802.11 ac/abgn
  • 802.11ac 1x1, Wave-2 compatible with MU-MIMO
  • Bluetooth 4.2
    Host interface
  • SDIO 1.1/2.0/3.0 for WLAN controller
  • HS-UART for Bluetooth controller


  • The product is applicable for Set-top box, Virtual reality, and Printer application