TIGERSECU's Super HD hybrid security DVR is a full featured hybrid digital video recording system designed for use with 2MP (1080p) HD TVI, AHD, CVI, and analog security cameras. For optimal performance, use this TIGERSECU DVR with TIGERSECU security cameras. Remotely access and play surveillance footage and control the security DVR with no contract or monthly fees with TIGERSECU's HD Viewer. For optimal performance, 1 Mbps upload speed is recommended for each 1080P camera. Bitrate settings can be adjusted in the DVR to accommodate slower network speeds. Mobile app requires iOS 9.3 or later and Android 9 or later. Compatible with iPhone and iPad. Unique heat sink fan technology enables the DVR to self-cool and prevent overheating, which means no fan noise and a quieter system. 4 audio inputs for 4 channels of audio recording in addition to 8 channels of video recording. 3 monitor connections through HD-port/VGA/CVBS ports. Pre-installed with a new 1TB surveillance hard disk drive (expandable to 16TB) for 5+ days of continuous local recording at the highest resolution. Motion detection options allow you to record only when motion is detected to save hard drive space. High efficiency video compression enables you to record more footage for the same storage space. TIGERSECU's Super HD hybrid security DVR is a full featured hybrid digital video recording system designed for use with 2MP (1080p) HD TVI, AHD, CVI, and analog security cameras. For optimal performance, use this TIGERSECU DVR with TIGERSECU security cameras. Remotely access and play surveillance footage and control the security DVR with no contract or monthly fees with TIGERSECU's HD Viewer. For optimal performance, 1 Mbps upload speed is recommended for each 1080P camera. Bitrate settings can be adjusted in the DVR to accommodate slower network speeds. Mobile app requires iOS 9.3 or later and Android 9 or later. Compatible with iPhone and iPad. Unique heat sink fan technology enables the DVR to self-cool and prevent overheating, which means no fan noise and a quieter system. 4 audio inputs for 4 channels of audio recording in addition to 8 channels of video recording. 3 monitor connections through HD-port/VGA/CVBS ports. Pre-installed with a new 1TB surveillance hard disk drive (expandable to 16TB) for 5+ days of continuous local recording at the highest resolution. Motion detection options allow you to record only when motion is detected to save hard drive space. High efficiency video compression enables you to record more footage for the same storage space.