MDR4000 series are with patented anti-vibration and power supply management system design. This DIN size product features high speed, industrial-grade standalone digital signal processor and RTOS, free from virus and instability and fast startup. It supports the auto-memory back-up for system parameters to ensure the stability in power-outage. The system supports 4-channel D1 resolution, black-box data recording function, WiFi auto download, and GPRS/CDMA/EDGE/3G wireless transmission. It is compatible with the central management system and multimedia management system.