A recording device designed for IP-camera surveillance systems is called an Eagle CCTV NVR (Network Video Recorder). This device gathers, stores, and occasionally analyses video feeds arriving via network connections as opposed to processing video at each camera (as was the case with older analogue systems). It allows you to view, store, and manage security footage from a single central location and is compatible with Eagle's line of IP cameras as well as most other third-party cameras that are ONVIF/RTSP compatible.
An essential component of IP-camera surveillance systems is a Dahua Network Video Recorder (NVR). It allows users to view live feeds, replay recorded video, and control a system of cameras. It records video streams from multiple cameras over a network and stores them on hard drives. Dahua provides a range of models, many with sophisticated AI/analytics features, from entry-level to professional/enterprise systems.
The VIGI NVRs are network video recorders from TP-Link designed for use in surveillance systems. They gather IP camera video streams, store the video on hard drives, enable live viewing and playback, and offer remote access through web interfaces or apps. To make installation easier, some models have built-in PoE or PoE+ ports that allow the cameras to be powered by a network cable.