Hikvision iDS-7216HUHI-M2/S 16-Channel AcuSense DVR, 5MP H.265 Pro+, Deep Learning Motion Detection, Smart Search, 2 SATA Interfaces, No Hard Drive IncludedUp to 16 ch analog camera inputs and 8 SATA interfaces H. 265 Pro+ H. 265 Pro H. 265 H. 264+ H. 264 video compression Up to 8 MP@8 fps 5 MP@12 fps encoding capability HDTVI AHD CVI CVBS IP video inputs Up to 34 ch network camera inputs POS triggered recording and POS information overlay RAID 0, 1, 5, 6, 10 for even more reliable data storage, effectively avoids data loss risks No Hard Drive Included. Purchase separately Hikvision iDS 7216HUHI M2 S 16