• 4ch CIF real-time DVR
• Video (H.264) / Audio (ADPCM)
• CIF Resolution real-time recording capability
   (Full 4CIF resolution recording support)
• Up to 4ch audio inputs and 1ch audio output
• Combined BNC and VGA video output for main display (up to 1280 x 1024)
• SRD-470 : SATA I/F HDD support (Internal Max. HDD x 2)
   SRD-470D : SATA I/F HDD support (Internal Max. HDD x 1)
• HDD & DVD SATA interface
• DDNS
• Built-in web viewer
• DVD R/W (SRD-470D)