... camera > Easy backup: USB devices, network download > Support 1 SATA HDD, 2 USB2.0 > Built-in web server, multi-DVR client ... mouse, IR remote control, Keyboard, NetworkVideoInput4 channel, BNC(1.0Vp-p, 75?)StandardNTSC(525Line, 60f/s), PAL(625Line, 50f/s) ... 6 is highest)Video Loss & Camera BlankSupportPlayback & BackupPlayback Channel1/2/4/AllSearch ModeTime/Date, MD & Exact search (accurate to second) ...