Features 8ch DVR Video (H.264) / Audio (ADPCM) Up to 120 FPS recording rate Up to 4ch audio inputs and 1ch audio output Combined BNC and VGA video output for main display (up to 1280 x 1024) SRD-830D : MAX 5 internal HDD (HDD x 5) 1TB Raw Storage HDD & DVD SATA interface DDNS Built-in web viewer DVD R/W Event notifications by E-mail This product delivers professional-grade performance, reliability, and seamless integration for modern security systems.