Swann Full HD (1920 x 1080) Surveillance Camera System, 4 Channel 1TB DVR with 2 x Full High Definition 1080P Weatherproof Aluminum Cameras, Motion Detection Day/Night Infrared Sensor (SWDVK-446002) A state of the art surveillance system with 1080p Full HD video resolution Set & forget by recording continuously from 4 channels for 24 days+ onto a 1TB hard drive, even longer with motion detection Seeing is believing with 2 x 1080p HD Cameras (2 Megapixel) Expand by adding 2 Swann PRO-A800 Series cameras for full 4 channel monitoring Save time & have peace of mind by easily locating incident video, then transfer to external storage via USB or network