Video Input and Transmission Self-adaptive HDTVI/HDCVI/AHD/CVBS signal input Up to 2-ch 4 MP IP cameras input Long distance transmission over UTP and coaxial cable: max. 800m for 1080p and 1200m for 720p HDTVI signal Compression and Recording H.265+/H.265/H.264+/H.264 encoding for the main stream, and H.265/H.264 for the sub-stream of analog cameras Connectable to H.265+/H.265/H.264+/H.264 IP cameras H.265+ can be enabled to improve encoding efficiency and reduce data storage costs Up to 3 MP resolution for recording Support real-time 1080p lite and when enabled, the image effect is similar with 1080p Video Output Simultaneous HDMI/VGA output HDMI output at up to 4K (3840 × 2160) resolution for AR324-16 Separate CVBS output Storage and Playback 2 SATA interfaces (up to 6 TB capacity per HDD) 16ch synchronous playback Smart search for efficient playback Support 3rd party cloud storage (Dropbox/Google Drive/Microsoft OneDrive) Smart Function Support multiple VCA (Video Content Analytics) events for both analog and smart IP cameras AR324-16 support 2-ch line crossing detection and intrusion detection and intrusion detection, and 1-ch sudden scene change detection VQD (Video Quality Diagnostics) Support PTZ control via Omnicast VMS of Genetec protocol Network & Ethernet Access GuardingVision & DDNS (Dynamic Domain Name System) for easy network management 1 RJ45 10M/100M Ethernet network interface Output bandwidth limit configurable Hard drive not included. We recommend purchasing security-grade hard drives optimized for surveillance functions from us, which we will install at no extra cost. Customer installed components (including hard drives) may damage your DVR and result in non-warranty repair costs. To calculate your storage needs, go to the Tools tab.