16CH 8MP NVR, Triple codec H.265/H.264/MJPEG with WiseStream technology, Dual track recording, 128Mbps network camera recording, Plug & play by 16 PoE(LAN, 10/100), 1PoE(WAN, 1Gbps), ARB (Automatic Recovery Backup), 2 fixed internal SATA HDD (20TB max), HDMI local monitor, SUNAPI, ONVIF, P2P service (QR code connect) supported, 4TB Seagate SKyHawk HDD included (ST4000VX016)