5MP SUPER HD, NIGHT VISION: Record real-time live video with 1920P (5MP) cameras. You can see incredibly bright and crystal images in real color. See up to 100ft in darkness with powerful IR LEDs. EASY SETUP: True Plug and Play setup, very easy for you to install, configure and control. Even just a beginner can install it within several minutes. No wiring hassles. UNFAILING 24x7 RECORDING: Get reliable 24x7 recording with the built in 2TB HDD, and you can install an external hard drive (up to 4TB). Support up to 8 cameras recording simultaneously. INSTANT ALERTS: Receive real-time alerts, including push notifications to your smartphones, email alerts and the warning sound of the NVR buzzer. Recorded evidences are supported to upload to a FTP server. WORK WITH REOLINK POE CAMERAS: 5MP NVR can work with all Reolink 5MP 4MP cameras. A perfect security camera system to manage up to 8 cameras easily.