... channels,8 channels,16 channels. 1080P*4CH HD-SDI 4CH DVR CE, UL listed HD-3104DVideo Input/Output: BNC 4CH In / 1CH ... , and network live, backup, playback1 RJ-45 Ethernet connector, Static, Dynamic IP and DDNS, Support Internet Explorer and special client softwareRemote ... : 6.0kg 1080P*4CH, RS422, PTZ, Alarm, Network, 2 SATA HD, HDMI, VGA, USB Backup, USB Mouse ...