Realtek's RTL8821CS-CG with TFBGA(5.2x5.2) is an RF transceiver IC designed for a variety of applications such as Wi-Fi, Bluetooth, and Sigfox. The RTL8821CS-CG is a single-chip, low-power, and low-size transceiver IC containing an 802.11b/g/n(2.4GHz)/ac (5GHz) radio, Bluetooth 5.0, and Sigfox in a TFBGA package. It supports up to 300Mbps throughput in the 2.4GHz band and 867Mbps throughput in the 5Ghz band. The integrated 1x1 antenna provides superior space savings and is compatible with Wi-Fi and Bluetooth Low Energy (BLE) applications. The RTL8821CS-CG features power saving modes to lower power consumption with lower throughput and has an in-built Quality of Service (QoS) engine for improved performance. This IC is offered in an RoHS compliant 5.2x5.2mm TFBGA package and is suitable for portable and low-power products.