The EVOLVEO Detective POE8 SMART camera system is eight-channel. It uses a POE system to power the cameras. The UTP cable has an RJ45 connector on both ends to provide power to the cameras. Another advantage is the transmission of signals from the NVR unit to the cameras. All your data is stored on the hard drive, so you always have a good view of it. Hard disk up to 8 TB in size can be inserted into the main drive. You can access individual records using the mobile app, which is compatible with both iOS and Android operating systems, and with Windows via the iCMS program. You can also see the footage from the EVOLVEO camera system directly on the monitor. The NVR unit allows connection to a monitor via HDMI or VGA cable.