Features 18 Channel AHD, TVI, CVI, CVBS, IP Pentabrid Recorder 16 Channel 8MP AHD DVR AHD, TVI, CVI (Maximum 8MP), analog camera, IP input 18 channel total recording capability (Network / Network + analog) 4K HDMI / VGA / spot video output 4 Channel audio input / 1 Channel audio output 16 alarm input / 4 relay output 8TB internal HDD Coaxial cable (Pelco-C, ACP) Smartphone support with QR code This product delivers professional-grade performance, reliability, and seamless integration for modern security systems.