Compact 4 channel POE NVR with 4K recording and embedded Linux for reliable video surveillance. Built from iron for durable installation and supplied with a US plug. Key benefits Simplifies multicamera installations by providing 4 independent 100 Mbps PoE ports that deliver data and power for up to four PoE cameras. Reduces storage needs with advanced H.265AI and H.265+ compression while remaining compatible with H.265 and H.264 formats. Enables clear live view and evidencequality playback up to 4K resolution, with flexible decoding and playback options for mixedresolution systems. Supports remote monitoring and alert delivery so you can review footage and receive notifications from anywhere with an internet connection. Main specifications Item type: 4K 4 channel POE NVR Size: US Plug Material: Iron Operating system: Embedded support for Linux Video input (IP): 10x4K Video compression: H.265AI and H.265+ compatible with H.265 and H.264 Display resolution: Up to 4K Playback resolution: 4K, 5MP, 4MP, 3MP, 1080P Decoding capacities: 4K (1), 5MP (1+1), 4MP (2+1), 3MP (2+2), 1080P (4+1) Local playback: 4K (1), 5MP (1+1), 4MP (2+1), 3MP (2+2), 1080P (4+1) Sound compression: G.711 Recording mode priority: Manual then Alarm then Motion Detection then Timing Search methods: Time, calendar, event, channel, face search Recording storage: Hard disk and network Hard disk bay: 1 x Serial ATA, maximum support 14 TB, no hard disk included Backup methods: Network backup, USB hard drive, USB recorder, Serial ATA recorder Video output: 1 x VGA, 1 x HDMI supporting up to 4K Sound input/output: 1 in / 1 out, 3.5 mm interface Network port: 1 x RJ45 10/100 Mbps adaptive ethernet port PoE interfaces: 4 independent 100 Mbps PoE network interfaces USB: 2 x USB 2.0 interfaces, with one reserved for expansion Power supply: PoE Maximum power: 30 W per port of a single unit Total power consumption: Up to 54 W (13.5 W per port) Supported standards: IEEE 802.3at, IEEE 802.3af Features and compatibility Face and portrait detection support for smart front end devices with face detection and portrait detection functions. External PoE expansion board required for extended power supply and network connection. HDMI 4K and VGA 1080P HD output options for flexible monitor setups. Web access, CMS support, and center platform management software compatibility with SDK available for integration or custom development. Cloud support and network penetration options for remote access and push alarm notifications to mobile devices. Supports common network services including DHCP, FTP, DNS, DDNS, NTP, UPNP, EMAIL, IP address search, and alarm center. GB28181 protocol support for access to third party platforms. Practical performance notes Advanced H.265AI and H.265+ compression saves significant storage without sacrificing image quality, enabling longer retention on a single drive. Multiple resolution decoding and playback modes let you mix resolution and lower resolution cameras while maintaining reliable simultaneous playback and evidence export. Onboard motion detection and alarm recording let the system prioritize important events and conserve space when no activity is present. Suggested use scenarios Home security: Four PoE cameras cover main entrances, driveway, backyard, and garage. Receive motion alerts on mobile devices and review 4K playback when needed. Small retail or office: Centralized 4 channel recording with PoE power reduces cabling. Use face search and event search to quickly locate incidents. Small hotel, parking area, or school: Combine mixedresolution cameras for wide area overview and closeup identification. Store weeks of footage on a single 14 TB SATA drive. What is included and what to prepare NVR unit with US plug and builtin PoE interfaces Note that HDD is not included; install up to a 14 TB SATA hard disk for local recording External PoE expansion board is required if additional power or network expansion is needed This NVR provides a durable, flexible, and standardscompliant solution for 4 channel PoE surveillance installations, supporting modern video compression, 4K output, remote access, and integration through SDK and common network protocols.