Advanced Linux-Based embedded NVR, 18TB, Supports 16 2.1MP cameras @30fps (1080P) up to 5MP, ONVIF, 16 port PoE switch built in, HDMI, VGA, 4 Sensor Input, 1 Relay Output, 1ch Audio Output, Pathfinder Auto Port Forwarding, Event Notifications via Email, Automatic Device Discovery, Pivot Central Management Software Up to 128CH, Free Mobile Apps for iPhone, iPad, iPod, Android Smart Phones and Tablets, MAC Compatible Remote Software, System Analysis with Real Time System, Network, and PoE Status Monitoring, Drag and Drop Camera Placement, One Touch Video Backup, Reverse Playback, & Emergency Recording, Simple & Free DDNS Support for Remote Management, Help Menu on Major Functions, Auto & Manual Firmware Upgrade Available, Import/Export Configuration between Multiple DVRs, USB Mouse and GUI Control, PTZ, 5 Year Limited Warranty