1.      OS: Built-in Linux OS, the most stable

2.      User-friendly GUI:16 bits true color OSD

3.      Network: Support Web view

4.      Port

n         SATA, IDE HDD Port

5.      Playback: Smart time search, time list search support; Backup while playback

6.      System function: Different record mode: continuous, motion detection; channel shield, VGA output(option), IR remote control