The Z8516NER is a Network Video Recorder (NVR) designed for medium to large security camera setups. Here's a breakdown of its key features: High-Resolution Recording: Supports recording and playback of footage from 4, 8, or even 16 security cameras, all in crisp 5MP resolution (even better than Full HD). Multiple Encoding Options: Compatible with various video compression formats (H.265+, H.265, H.264+, H.264) allowing for efficient storage usage. 1080P HDMI Output: Connects directly to an HD monitor for live or recorded footage viewing. Extensive Network Connectivity: Supports various networking protocols for seamless integration with your existing network. ONVIF Compatibility: Works with a wide range of security camera brands for easy setup. Remote Access: Monitor your cameras from anywhere with an internet connection using a mobile app (iOS/Android) or web browser (compatible with multiple browsers). Cloud and P2P Options (check model specifics): Allows for remote storage and easy access to footage.