This Hikvision all in one 16 channel 4K POE security camera NVR DS-7616NI-K2/16P next generation security network video recorder offers unparalleled recording technology for IP video surveillance applications. For applications where details are critical for identification, this NVR provides a powerful Intel processor with up to 4K resolution. Additionally, the NVR features a mouse shortcut operation menu, remote management and control, centre storage, edge storage, and back up storage. Features: 16 Channel PoE H.265+ 4K Network Video Recorder HDMI/VGA 160Mbps/160Mbps 2 SATA Audio 1-in/1-out Alarm 4-in/1-out 2 USB2.0 100 to 240VAC Functions Dual-OS design to ensure high reliability of system running ANR technology to enhance the storage reliability when the network is disconnected H.265/H.264/H.264+ video formats Connectable to the third-party network cameras 16 IP cameras can be connected Recording at up to 8 MP resolution Supports live view, storage, and playback of the connected camera at up to 8 MP resolution HDMI/VGA outputs provided HDMI Video output at up to 4K (3840 2160) resolution 2 SATA interfaces connectable for recording and backup Storage space effectively saved by 50% to 70% with the use of H.264+ decoding format 1 self-adaptive 10M/100Mbps network interface 16 independent PoE network interfaces are provided Centralized management of IP cameras, including configuration, information import/export, real-time information display, two-way audio, upgrade, etc. Connectable to smart IP cameras from Hikvision and the recording, playing back, and backing up of VCA alarms can be realized VCA detection alarm is supported Instant playback for assigned channel during multi-channel display mode Smart search for the selected area in the video; and smart playback to improve the playback efficiency Specs: Max Image Resolution 8MP System Compression H.265/H.265+/H.264/H.264+/MPEG4 Video Out HDMI/VGA simultaneous output Video Resolution HDMI: 4K (3840 2160)/30Hz, 1920 1080p/60Hz, 1600 1200/60Hz, 1280 1024/60Hz, 1280 720/60Hz, 1024 768/60Hz; IP Camera Input 16 Ch Audio In 1-ch, RCA Audio Out 1-ch 2 Way Audio 1-ch, RCA (2.0 Vp-p, 1 k ?) Recording Resolution 8 MP/6 MP/5 MP/4 MP/3 MP/1080p/UXGA /720p/VGA/4CIF/DCIF/ 2CIF/CIF/QCIF Recording Rate N/A Alarm In 4 Ch Alarm Out 1 Ch Playback Channels 16CH Playback Search Time/Calendar Search, Event (motion) Playback Function Play, Pause, FF, FB; Digital zoom Backup Mode N/A Network Interface 1, RJ-45 10/100/1000 Mbps self-adaptive Ethernet interface PoE Ports 16, RJ-45 10/100 Mbps self-adaptive Ethernet interface Incoming Bandwidth 160 Mbps Outgoing Bandwidth 160 Mbps Network Protocol TCP/IP, DHCP, Hik-Connect, DNS, DDNS, NTP, SADP, SMTP, NFS, iSCSI, UPnP?, HTTPS USB Front panel: 1 USB 2.0; Rear panel: 1 USB 3.0 RS485 N/A RS232 N/A Internal HDD 2 SATA interface, Up to 6TB capacity for each disk e-SATA N/A Power Supply 100 to 240 VAC Power Consumption ? 180 W Operating Conditions -10 to +55º C (+14 to +131º F) Dimensions 385 315 52 mm (15.2" 12.4" 2.0") Weight Weight(without hard disk) ? 3 kg (6.6 lb) Disclaimer: Hikvision is the largest OEM manufacturer in the world. Most of Hikvision products sold in the US are the non-branded OEM versions. The non-branded product is the exact same item, but the Hikvision logo is removed and they use a different OEM part # on the sticker. We are able to get non-branded versions at lower costs and therefore offer our customers lower prices. The product that you order is manufactured by Hikvision and carries their 3 year warranty.