... ; Maximum support 2CH of D1 + 2CH of CIF real time recording.4.Professional car power supply design, support 7V~48V ... )Communication PortRS232,RJ45 10M/100M adaptive network interfaceWireless Transmissionbuilt-in 3G wireless transmission function, WCDMA, EVDO, HSPA,TD ... synchronization playback, analyze the vehicle information in the document at the same time; support fast forward, fast backward, play ...