Main stream supports up to 4CIF resolution and sub stream supportsCIF/QCIFresolution. Simultaneous HDMI, VGAand CVBS outputs.  HDMIoutput and VGA output at up to 1920×1080Presolution.  Channel-zero encoding. Support dual stream. HDD quota management; different capacitycan be assigned to different channel. Holiday recording schedule configuration. Smart searching for the event triggered record files. Digital zoom of video in live view or playback mode.