The Silicon Motion SM718 is a graphics processor designed for USB-based display solutions. It enables video output through USB interfaces and supports multiple display outputs like HDMI, VGA, and LVDS. The SM718 is typically used in applications such as USB display adapters, thin/zero clients, and digital signage. It supports up to Full HD resolution (1920x1080), hardware video decoding (H.264/MJPEG), and is optimized for low power consumption.