The Clover Professional Grade 8 Channel Security System is ready to plug and play right out of the box and by programming the networking function, up to five users can view live video, play back, and network at the same time over the internet and on most cell phones. The system is packed with many more programmable features to meet your specific needs such as recording modes, play back, view settings, email notifications, motion detection, and more. The installed 500 GB Hard Disk Drive provides for extended recording time so nothing will be missed (subject to record settings). To maximize the disk space, the system employs the latest H.264 video compression method. There are four indoor/outdoor night vision cameras included with the system but the DVR can record up to eight cameras at the same time. Additional cameras are available separately and sold in pack of four (OC1554). Most other cameras can be used with the system since the DVR has BNC video inputs. Each camera can be viewed individually, view four at one time, all eight cameras at one time or each camera view can be set to sequence. Each camera has 24 Infrared LEDs that provide up to 45-Feet of night vision and uses a CDS sensor as a light sensor to turn on the Infrared LEDs in low light conditions. The camera enclosure is made of ruggedized steel delivering years of service and the low profile camera mount allows for a more discreet installation. Everything needed to install all four cameras is included, even the camera mounting hardware. Each camera cable is 60-Feet long and combines both video and power eliminating the need to run two separate cables during installation. Whether used for the office, warehouse, retail store, or even your home, you can trust the Clover BUN0885 Professional Security System for continuous protection. If you need additional information or have any questions please call our friendly staff at 877-327-5000 or visit our web site.