The RFS390B-AZW-DNN is an advanced embedded human machine interface (HMI) LCD module manufactured by Raystar. It has a 3.9-inch TFT display with 480x128 resolution, LED backlight, and a dimension of 105.5x37x3.05mm. The module is engineered for industrial and medical applications and offers a fast graphic touch panel, with a high resolution, wide viewing angle, and a wide range of color and input options. It also provides integration with a variety of communication protocols, including CANbus, Ethernet, RS232, etc. and comes with optional GPIO, relay and command input/output capabilities. It features low power consumption and efficient thermal performance, while maintaining a long lifetime service life.