Q-See QS408-411-5 Precision Recording Security System with 4 Indoor/Outdoor Cameras and Pre-Installed 500GB Hard Drive Advanced H.264 Video Compression CIF Real-Time Recording (30FPS per channel x 8 cameras = 240FPS Total) / D1 Recording Option (7.5FPS per channel x 8 cameras = 60FPS Total) Stream Live Video Directly to a remote PC, iPhone, iPad, Android, or other Supported Smartphone Running Windows Mobile Pro or Symbian on 3G Networks Trigger Email Alerts on Motion Detection Events. Pre-Installed 500GB Hard Drive;DVR Supports up to 8 Security Cameras Backup important video from the DVR to a PC or Flash Drive