Super HD 5MP High Resolution 5MP RLK8-410B4 with a pixel resolution of 2560x1920, that is, nearly 2.4X the resolution of 1080p Full HD, and even 1.3X the resolution of 1440p. It sees and records your home security more clearly, with more details PoE — Easy Setup, Even for a Beginner A real plug and play security system! It features PoE (Power over Ethernet), with a single network cable connecting each IP camera to the NVR for both power supply and video signal transmission. Easy wiring – the wiring process can’t be simpler for DIY enthusiasts and beginners   24/7 Recording and Monitoring Pre-installed : 2TB Seagate HDD : Up to 8 Cameras : Up to 4TB External HDD   High Quality Night Vision With plenty LED lights and improved infrared radiation for 24-hour vigilance, the 5MP cameras ensure a clear night vision, up to 30 m long distance (depending on the environment)   Video Playback — Recall Events and Moments Replay significant evidence or funny video records. 4-channel simultaneous playback. Quick search for any event that happened at any time. Freely playback any event on days, hours and even minutes with the help of timer axis under the split screen Work with Various Reolink IP Cameras This security camera system can be expanded up to 8-camera kit with Reolink IP cameras - bullet, dome or PTZ; 12MP, 8MP, 5MP, or 4MP – to cover every corner in your home, store or factory * The Reolink NVRs work with Reolink security cameras ONLY.