... 264 Network Digital Video Recorder 1.Support 2 USB DVR 2.PTZ, Audio, Network, 3.VGA 4.OEM CCTV ... DVR H. 264 Network Digital Video RecorderCCTV DVR Features:1. ... -time preview, settings, backup and playback video through IE; CCTV DVR Specification: BCS6504BCS5304Video ... OutputRCA, 1 channelAudio InputRCA , 4 channels RCA , 1 channel(or 4 channels, option) HDD Port1 SATA ...