The DHI-NVR5216-EI2 is a 16-channel, 1U network video recorder from Dahua’s next-generation WizSense EI2 series, built to deliver faster bandwidth, larger storage, and more advanced AI search than earlier WizSense models. It’s designed for businesses that want future-ready performance in a compact recorder.
This recorder supports IP camera resolutions up to 32 MP and reaches a maximum decoding capability of 40 channels at 1080p@30fps. Bandwidth is rated at 448 Mbps for incoming, recording, and outgoing streams, dropping to 200 Mbps when AI functions are enabled, giving it notably higher throughput than previous-generation EI models.
AI performance is where the DHI-NVR5216-EI2 truly stands apart. Onboard, it delivers 4-channel face detection and recognition, 16-channel SMD Plus, 8-channel perimeter protection, and 4-channel video metadata and AcuPick analytics. It also introduces WizSeek, an intelligent search engine that can index and search recorded footage using natural language across 32 supported languages, with modeling capacity of up to 345,600 targets per day.
Camera-side AI extends further into ANPR, PPE detection, crowd distribution, heat mapping, and smart sound detection, all supported across full channel counts when paired with compatible Dahua cameras. Face database capacity reaches 20 databases with up to 30,000 images, giving it stronger identity management capacity than older models.
Storage is handled through two SATA bays, each supporting up to 26 TB, alongside N+M clustering and iSCSI support for scalable, redundant architecture. Video output includes 8K-capable HDMI alongside VGA, with heterogeneous source configuration for flexible multi-display setups.
Running on an industrial-grade processor with embedded Linux, the DHI-NVR5216-EI2 supports the latest ONVIF 25.12 profile, CGI, and SDK integration, along with third-party camera compatibility from brands including Axis, Sony, Panasonic, and Hanwha.
For organizations that want cutting-edge AI search, higher bandwidth, and greater storage headroom in a compact 1U recorder, the DHI-NVR5216-EI2 is a strong step up from previous-generation WizSense models.
DHI-NVR5216-EI2 System
| Feature | Specification |
| Main Processor | Industrial-grade processor |
| Operating System | Embedded Linux |
| Operating Interface | Web, Local GUI |
DHI-NVR5216-EI2 AI & Analytics
| Feature | Specification |
| AI by Recorder | Face detection; face recognition; video metadata (human, motor vehicles, and non-motor vehicles); perimeter protection; SMD Plus; AcuPick; WizSeek; Text-Defined Alarm |
| AI by Camera | Face detection; face recognition; video metadata (human, motor vehicles, and non-motor vehicles); perimeter protection; SMD; stereo analysis; crowd distribution; people counting; ANPR; vehicle density; heat map; PPE detection; smart object detection; smart sound detection; AcuPick |
| AcuPick Performance (Recorder AI) | 4 channels |
| AcuPick Performance (Camera AI) | All channels (32 targets/s) |
| WizSeek Performance |
1. Compatible with cameras that support AcuPick/IVS/Metadata, it can meet full-channel WizSeek (Max 4 targets per sec)
2. Modeling capability: up to 345,600 targets per day
|
| WizSeek Search Languages | English, TradChinese, Italian, Spanish, Japanese, Russian, French, German, Portugal, Turkey, Poland, Romanian, Hungarian, Finnish, Korean, Dansk, Czechish, Bulgaria, Slovenia, Dutch, Greek, Ukrainian, Swedish, Serbian, Arabic, Thai, Hebrew, Norwegian, SpanishEU, Indonesian, PortugalBR, Vietnam, Cambodia |
| Perimeter Performance (Recorder AI) | 8 channels, 10 IVS rules for each channel |
| Perimeter Performance (Camera AI) | All channels (32 targets/s) |
| Face Attributes | Gender; age group; glasses; expressions; face mask; beard |
| Face Detection Performance (Recorder AI) | 4 channels (up to 12 face images/s each channel) |
| Face Detection Performance (Camera AI) | All channels (32 targets/s) |
| Face Database Capacity | Up to 20 face databases with 30,000 images, with a total capacity of 3.75 GB. Name, gender, birthday, address, credential type, credential No., countries & regions and state can be added to each face image. |
| Face Recognition Performance (Recorder AI) |
1. 16-channel FD (by camera) + FR (by recorder), image stream: 24 face images/s
2. 4-channel FD (by recorder) + FR (by recorder), video stream: 24 face images/s
|
| Face Recognition Performance (Camera AI) | All channels (32 targets/s) |
| SMD Plus by Recorder | 16 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain and lighting condition change |
| SMD by Camera | All channels (64 targets/s) |
| Video Metadata (Recorder AI) | 4 channels, 22 attributes extraction |
| Video Metadata (Camera AI) | All channels (16 targets/s) |
| People Attributes | Top color, top type, bottom color, bottom type, hat, bag, age, gender and umbrella |
| Motor Vehicle Attributes | License plate, plate color, vehicle body, vehicle model, vehicle logo, calling, seatbelt, vehicle interior, vehicle registration location |
| Non-motor Vehicle Attributes | Vehicle model, vehicle color, number of persons, helmet |
| ANPR by Camera | All channels (8 targets/s) |
| License Plate Database Capacity |
1. Create up to 20,000 plate numbers.
2. Blocklist and allowlist
|
DHI-NVR5216-EI2 Audio and Video
| Feature | Specification |
| Access Channel | 16 channels |
| Network Bandwidth |
AI disabled: 448 Mbps incoming, 448 Mbps recording and 448 Mbps outgoing
AI enabled: 200 Mbps incoming, 200 Mbps recording and 200 Mbps outgoing
|
| Resolution | 32 MP; 24 MP; 16 MP; 12 MP; 8 MP; 6 MP; 5 MP; 4 MP; 3 MP; 1080p; 720p; 960p; D1; CIF; QCIF |
| Decoding Capability (AI Disabled) | 2-channel 32 MP@25 fps; 2-channel 24 MP@25 fps; 5-channel 16 MP@30 fps; 6-channel 12 MP@30 fps; 10-channel 8 MP@30 fps; 13-channel 6 MP@30 fps; 16-channel 5 MP@30 fps |
| Decoding Capability (AI Enabled) | 1-channel 32 MP@25 fps; 2-channel 24 MP@25 fps; 4-channel 16 MP@30 fps; 5-channel 12 MP@30 fps; 8-channel 8 MP@30 fps; 10-channel 6 MP@30 fps; 12-channel 5 MP@30 fps; 16-channel 4 MP@30 fps |
| Video Output |
1 VGA, 1 HDMI
• VGA: 1920 × 1080, 1280 × 1024, 1280 × 720
• HDMI: 7680 × 4320, 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720
(Heterogeneous video source output for HDMI and VGA)
|
| Multi-screen Display |
Main Screen: 1/4/8/9/16
Sub Screen: 1/4/8/9/16
|
| Third-party Camera Access | ONVIF; Panasonic; Sony; Axis; Arecont; Pelco; Canon; Hanwha |
DHI-NVR5216-EI2 Compression Standard
| Feature | Specification |
| Video Compression | Smart H.265+; H.265; Smart H.264+; H.264; MJPEG |
| Audio Compression | G.711a; G.711u; PCM; G726 |
DHI-NVR5216-EI2 Network
| Feature | Specification |
| Network Protocol | HTTP; HTTPS; TCP/IP; IPv4; IPv6; RTSP; UDP; NTP; DHCP; DNS; SMTP; UPnP; IP Filter; FTP; DDNS; SNMP; Alarm Server; P2P; Auto Registration; IP Search (Supports IP camera, DVR, NVS, etc.); iSCSI; RTMP |
| Mobile Phone Access | iOS; Android |
| Interoperability | ONVIF 25.12 (Profile T; Profile S; Profile G; Profile M); CGI; SDK |
| Browser | Chrome; IE; Safari; Edge; Firefox |
DHI-NVR5216-EI2 Recording Playback & Storage
| Feature | Specification |
| Multi-channel Playback | Up to 16 channels |
| Record Mode | General, motion detection; intelligent; alarm; POS |
| Backup Method | USB device and network |
| Playback Mode | Instant playback, general playback, event playback, target Video, video clip, tag playback, smart playback (face and motion detection) |
| Disk Group | Yes |
DHI-NVR5216-EI2 Alarm
| Feature | Specification |
| General Alarm | Motion detection; local alarm; alarm box; camera external alarm; network alarm; scene changing; PIR alarm; thermal alarm |
| Anomaly Alarm | Error (no disk, disk error, low space, low quota space; abnormal disk health; network disconnection; IP conflict; MAC conflict; abnormal fan speed); video loss; video tampering; camera offline; audio detection; alarm box offline |
| Intelligent Alarm | Face detection; perimeter protection; face recognition; video metadata (human, motor vehicles, and non-motor vehicles); SMD Plus; stereo analysis; crowd distribution; people counting; ANPR; vehicle density; heat map; PPE detection; smart object detection; smart sound detection |
| Alarm Linkage | Record; snapshot (panoramic); local alarm output; IPC external alarm output; audio; buzzer; log, preset; email |
DHI-NVR5216-EI2 Port & Interfaces
| Feature | Specification |
| Audio Input | 1-channel RCA |
| Audio Output | 1-channel RCA |
| Alarm Input | 4 channels |
| Alarm Output | 2 channels |
| Disk Interface | 2 SATA ports, each disk can contain up to 26 TB (This limit varies depending on the environment temperature) |
| RS-232 | 1 |
| RS-485 | 1 |
| USB | 2 (1 front USB 2.0 port, 1 rear USB 3.0 port) |
| HDMI | 1 |
| VGA | 1 |
| Network Port | 1 (10/100/1000 Mbps Ethernet port, RJ-45) |
DHI-NVR5216-EI2 General Specifications
| Feature | Specification |
| Power Supply | 12 VDC, 4 A |
| Power Consumption | Total output of NVR is ≤ 10 W (without HDD) |
| Net Weight | 1.55 kg (3.42 lb) |
| Gross Weight | 2.77 kg (6.11 lb) |
| Product Dimensions | 375.0 mm × 284.8 mm × 56.0 mm (14.76″ × 11.21″ × 2.20″) (W × D × H) |
| Packaging Dimensions | 427.0 mm × 137.0 mm × 356.0 mm (16.81″ × 5.39″ × 14.02″) (W × D × H) |
| Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| Storage Temperature | –20 °C to +60 °C (–4 °F to +140 °F) |
| Operating Humidity | 10%–93% (RH), non-condensing |
| Certifications |
CE-EMC: EN 55032:2015+A1:2020; EN IEC 61000-3-2:2019+A1:2021; EN 61000-3-3:2013+A1:2019+A2:2021; EN 55035:2017+A11:2020; EN 50130-4:2011+A1:2014
CE-LVD: EN 62368-1:2014
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