3S vehicle DVR are equipped with metal housing for reducing vibration of the hard disk during long-time driving trip. Fanless design effectively improves power consumption to ensure the stability. G-sensor is embedded for instantly respond and protect video from deletion or overwrite when an accident occurs. The 8CH DVR can connect with analog cameras and network cameras simultaneously to get real-time video and support playback. In addition, 3S also provide a variety of customized functions as 5G/4G module, Wireless transmission, GPS Tracking for the business of transportations, fleet management and other mobile applications.