The TIGERSECU Super HD hybrid 8 channel security DVR supports up to 5MP HD TVI, AHD, CVI, and analog security cameras. For best results, pair with TIGERSECU security cameras. Control the security DVR and view surveillance footage remotely using TIGERSECU's HD Viewer, with no monthly fees or contracts required. Recommended 1 Mbps network upload speed per 1080P camera. Adjust bitrate settings in the DVR to suit slower network speeds. Mobile app compatible with iOS 9.3 or later and Android 9 or later. Comes with a pre-installed 1TB surveillance hard disk drive (expandable to 16TB) for over 5 days of continuous recording at the highest resolution. Motion detection feature saves hard drive space by only recording when motion is detected. Stay cool and avoid overheating with our unique heat sink fan technology, ensuring a noise-free and quieter system. Audio recording supported on 4 channels (channels 1 to 4) in addition to video recording on 8 channels. Connect up to 3 monitors through HD-port, VGA, and CVBS ports.