The AFW121TI-LED1 is a WiFi module manufactured by 99IOT. It features a Cortex-M4 PCB On Board Antenna that operates at 2.4GHz. The module has an impressive 91dBm 15dBm Signal to Noise Ratio, making it suitable for applications that require high data rates. It is also RoHS compliant, meaning it meets all international standards for hazardous materials and is safe to use. The module has a surface mount design, making it easy to integrate with other circuitry.