... 4CH Recording Modes Manual, Continue, alarm, motion detection Operating System Embeded Linux Operating Method USB mouse, remote control, control ... D1:PAL 50fps/720×576 Watchdog (LED indicator) Power, channel, backup, network Event Modes Alarm trigger, video detection trigger ... operation Support HD Storage SATA×2 Backup System USB,CD-RW,network backup,AVI format backup Power Supply DC:12V/5A AX ...