Expandable IP Camera System: This ONVIF-conformant system support up to 32 x 4K cameras recording (32 are included). CTVISION trusted hard drive is purpose-built for Reliable 24/7 surveillance, and you can expand the 8TB storage to 20TB. True Plug and Play: PoE security system brings easy setup and installation. Just need to connect each IP camera to the NVR with a single network cable up to 330ft. Users can enjoy smooth security coverage of the entire house. Stunning HD Display: Record incredibly bright and crystal video with 1944P cameras. See up to 100ft in darkness with powerful IR LEDs. Customize motion detection: Simply customize specific zones to minimize false alerts. Send email alerts with photos or 30-second video clips through the mobile app when triggered. Quickly Remote Access and Playback using the free CTVISION anytime. NOTE: 1-year Warranty.