The Fn-Link 6252B-SRB is a highly integrated, low-power 2x2 dual-band (2.4GHz/5GHz) Wi-Fi 6 (\(802.11ax\)) and Bluetooth 5.2 module designed for IoT applications, set-top boxes, and smart home devices. It uses an SDIO 3.0 interface for Wi-Fi and UART/PCM for Bluetooth, featuring 802.11ax MU-MIMO for up to 1201 Mbps data rates.