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The 850 EVO by SAMSUNG is an 8-channel IP DVR. It allows recording video from IP cameras of up to 12 Mpix resolution. The DVR has a built-in 8-port PoE switch allowing direct connection and powering of IP cameras. There are also 2 built-in SATA ports which allows to connect hard drives of up to 6 TB capacity. It is possible to connect two monitors thanks to independent HDMI(max. 4K) and VGA(max. 1080p) outputs. In addition, support for NAS (NFS) and SAN (iSCSI) network disk arrays is supported. Built-in USB ports allow you to plug in a flash drive or external disk and copy specific sections to external storage media. When the memory is overflowing, the recorder automatically starts overwriting, so you don't lose the latest data.
Local recording and network transmission can be done in compression standards, allowing the best image quality using minimum network bandwidth and disk capacity (compression methods must be supported by the cameras). The H.265 and H.264+ standards allow for twice as much image compression compared to H.264, while maintaining excellent image quality. As a result, the data stream generates less network traffic, which implies a lower demand for disk capacity.