This DVR comes with pre-installed 1TB Hard Drive (can view, record and playback). This is a hard wired security DVR, it could not connect wireless cameras. System Resources: Pentaplex function: live, recording, playback, backup & remote access. Recording Mode: Manual>Motion Detection>Continuous. Search Mode: Time/Date/Motion Detection & exact search. Video Outputs: HDMI / VGA. Video Inputs: 8 channel. Hard Disk: 1 SATA ports(Max 8TB). USB back up: Support. Super Video Quality and Clarity: Supports 8-Channel 1080p Resolution. Custom Record Modes e. Manual, Scheduled, Motion Detection and Record Intervals (1-120min). You can transfer video files to back-up media via USB port. Remote Access in Minutes. Quick & Easy Connection 2. Download Free ZOSI Smart APP 3. Lower Bandwidth Less Storage Space Better Image Quality. Customize Each Camera with Different Record Modes. ZOSI DVR offers 4 kinds recording modes to meet your needs. Continuous Record ; Scheduled Record; Motion Detect Record; Recycle Record. Record Continuous: Your DVR will continuously record regardless of what is Happening. Schedule Record: Record based on your own custom schedule time. Motion Dection Record: The DVR will only record when the motion is detected. Recycle Record: This allows your DVR to overwrite the oldest video files on the hard drive. You can customize each camera with different recording modes, which allows you to save spaceon the hard drive. Playback the crucial evidence or funny video records by time search. The ZOSI Smart free app lets you see all of your cameras in one place. Check-in on your home or business wherever you have an internet connection. Free ZOSI Smart App for Live View & Playback on Smart Devices with Wi-Fi or 2G/3G/4G Anywhere Anytime. Local View or Remote View from multiple devices. 4-IN-1 security DVR: This 4-in-1 DVR supports Analog, TVI, CVI, AHD security cameras. High compatibility could be easy to connect different cameras. 8 channel DVR: This dvr supports up to 8pcs cameras, so you could choose different cameras as your security need. Zosi have bullet camera, dome camera, black camera, white camera which is compatible for this system. Customizable Motion Detection Zones & Alert. Reduce false and uselessmotion alerts. 1 x 8CH 1080p HD-TVI Digital Video Recorder 1 x 12V/2000mA Power Supply for DVR 1 x Mouse for DVR 1 x User guide for DVR 1 x pre-installed.