1. H.264 Compression format, 4 channels video input, 1 channel audio input

2. Frame rate: 120fps(NTSC); 100fps(PAL);frame rate and code rate adjustable

3. Recording quality adjustable, power automatic recovery recording mode.

4. Specially designed video special file system, can improve the service life of the hard disk

5. Draw hard disk box, support 2.5 inch notebook hard disk, USB backup