Swann 8 Channel 3MP HD IP NVR Security System with 4 3MP Cameras, 2TB HDD, and 100' Night Vision (SWNVK-873004) Swanns network video recording security system with beyond 1080p high definition live viewing & playback in real-time (30 fps per channel) Add 4 more NVR cameras for full 8 channel monitoring State-of-the-art digital imaging technology for 9 x the picture sharpness of traditional security systems including analog D1 Includes 4 x security cameras capable of generating super high definition 3 megapixels (50% more than 1080p) video with IR cut filters for powerful night vision to 100ft / 30m & a weather-resistant rating of IP66 for indoor & outdoor use Set & forget by recording continuously from 8 channels for 24 days+ onto a 2TB hard drive (expandable to 6TB ) or even longer with motion detection~ Security in the palm of your hand with live viewing on your Smartphone or tablet including iOS (iPhone, iPad) & Android devices using the free Swann View Link app. Please Note: Kindly refer the User Manual before use.