Dahua DHI-NVR5864-4KS2 NVR features Quad-core embedded processor, Embedded LINUX operating system, 2 HDMI, 2 VGA, smart H.265+ / H.265 / smart H.264+ / H.264 / MJPEG, up to 12MP resolution for preview and playback, 8 SATA III ports, up to 10 TB capacity for each HDD, 16Kbps~20Mbps per channel bit rate, 2 x RJ-45 ports 10/100/1000Mbps interface.