The DHI-NVR4432-EI is a 32-channel, 1.5U network video recorder built for businesses that need serious storage capacity without sacrificing intelligent video management. Designed under Dahua’s WizSense series, this recorder is engineered to handle demanding surveillance environments where reliability and AI-driven accuracy matter most.
At its core, the DHI-NVR4432-EI supports Smart H.265+, H.265, Smart H.264+, H.264, and MJPEG decoding formats, giving installers flexibility across a wide range of camera types. It can access, store, and forward video at up to 256 Mbps, dropping to 180 Mbps when AI functions are active, ensuring smooth performance even under heavy network load.
One of the standout features of this NVR is its onboard AI processing. The unit delivers one-channel face detection and recognition, two-channel perimeter protection, and four-channel SMD Plus filtering, which reduces false alarms triggered by leaves, rain, or lighting changes. It can also manage up to 10 face databases holding 20,000 face images, making it a strong fit for access control and identity verification projects.
Beyond onboard intelligence, the DHI-NVR4432-EI extends its AI capabilities when paired with compatible Dahua cameras, unlocking face recognition, ANPR, people counting, stereo analysis, and heat mapping directly at the camera level. This dual-layer AI architecture — recorder-side and camera-side — gives system integrators the flexibility to scale intelligence based on project requirements and budget.
Storage-wise, the recorder houses four SATA HDD bays supporting up to 20 TB total capacity, along with disk grouping for organized data management. Connectivity is equally robust, featuring dual Gigabit Ethernet ports, HDMI and VGA video outputs, RS-232, RS-485, and both USB 2.0 and USB 3.0 ports for backup and peripheral support.
Built on an industrial-grade processor running embedded Linux, the recorder supports ONVIF, CGI, and SDK integration, along with compatibility for third-party cameras from brands like Axis, Sony, Panasonic, and Hanwha. This makes the DHI-NVR4432-EI an adaptable choice for mixed-brand installations.
Whether deployed in retail, commercial buildings, or mid-sized enterprise sites, this NVR balances AI performance, storage scalability, and network efficiency in a compact 1.5U form factor.
DHI-NVR4432-EI System
| Feature | Specification |
| Main Processor | Industrial-grade processor |
| Operating System | Embedded Linux |
| Operating Interface | Web, Local GUI |
DHI-NVR4432-EI AI & Analytics
| Feature | Specification |
| AI by Recorder | Face detection; face recognition; perimeter protection; and SMD |
| AI by Camera | Face detection; face recognition; perimeter protection; SMD; ANPR; people counting; stereo analysis; heat map |
| Perimeter Performance AI by Recorder | 2 channels, 10 IVS rules for each channel |
| Perimeter Performance of AI by Camera | All channels (8 targets/s) |
| Face Attributes | Gender; age group; glasses; expressions; face mask; beard |
| Face Detection Performance of AI by Recorder | 1 channel (up to 12 face images/s each channel) |
| Face Detection Performance of AI by Camera | All channels (8 targets/s) |
| Face Database Capacity | Up to 10 face databases with 20,000 images, with a total capacity of 2.5 G. Name, gender, birthday, address, credential type, credential No., countries & regions and state can be added to each face image. |
| Face Recognition Performance of AI by Recorder |
• 8-channel FD (by camera) + FR (by recorder), image stream: 12 face images/s
• 1-channel FD (by recorder) + FR (by recorder), video stream: 12 face images/s
|
| Face Recognition Performance of AI by Camera | All channels (8 targets/s) |
| SMD Plus by Recorder | 4 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain and lighting condition change |
| SMD by Camera | All channels (16 targets/s) |
| ANPR by Camera | All channels (4 targets/s) |
| License Plate Database Capacity |
1. Create up to 20,000 plate numbers.
2. Blocklist and allowlist
|
DHI-NVR4432-EI Audio and Video
| Feature | Specification |
| Access Channel | 32 channels |
| Network Bandwidth |
AI disabled: 256 Mbps incoming, 256 Mbps recording and 256 Mbps outgoing
AI enabled: 180 Mbps incoming, 180 Mbps recording and 180 Mbps outgoing
|
| Resolution | 16 MP; 12 MP; 8 MP; 6 MP; 5 MP; 4 MP; 3 MP; 1080p; 720p; 960p; D1; CIF |
| Decoding Capability (AI Disabled) | 2-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 4-channel 8 MP@30 fps; 4-channel 6 MP@30 fps; 6-channel 5 MP@30 fps; 8-channel 4 MP@30 fps; 16-channel 1080p@30 fps; 32-channel 720p@30 fps |
| Decoding Capability (AI Enabled) | 1-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 3-channel 8 MP@30 fps; 3-channel 6 MP@30 fps; 4-channel 5 MP@30 fps; 6-channel 4 MP@30 fps; 12-channel 1080p@30 fps; 16-channel 720p@30 fps; 32-channel D1@30 fps |
| Video Output |
1 HDMI, 1 VGA
• HDMI: 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720
• VGA: 1920 × 1080, 1280 × 1024, 1280 × 720
(Simultaneous/heterogeneous video sources output for VGA and HDMI is configurable)
|
| Multi-screen Display |
1st Screen: 1/4/8/9/16/25/36
2nd Screen: 1/4/8/9/16
|
| Third-party Camera Access | Panasonic, Sony, Hanwha, Axis, Pelco, Arecont, ONVIF, Canon |
DHI-NVR4432-EI 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-NVR4432-EI Network
| Feature | Specification |
| Network Protocol | HTTP; HTTPS; TCP/IP; IPv4; IPv6; RTSP; UPnP; SNMP; UDP; SMTP; NTP; DHCP; DNS; IP Filter; PPPoE; DDNS; FTP; Alarm Server; IP Search (Support Dahua IP camera, DVR, NVS, etc.); P2P; Auto Registration |
| Mobile Phone Access | iOS; Android |
| Interoperability | ONVIF 23.12 (Profile T; Profile S; Profile G); CGI; SDK |
| Browser | Chrome; IE9 and later; Firefox |
DHI-NVR4432-EI Recording Playback & Storage
| Feature | Specification |
| Multi-channel Playback | Up to 16 channels |
| Record Mode | General, motion detection; intelligent; alarm |
| Backup Method | USB device and network |
| Playback Mode | Instant playback, general playback, event playback, tag playback, smart playback |
| Disk Group | Yes |
DHI-NVR4432-EI Alarm
| Feature | Specification |
| General Alarm | Motion detection; privacy masking; video loss; scene changing; PIR alarm; IPC external alarm |
| Anomaly Alarm | Error (no disk; disk error; low space; low quota space; abnormal disk health; network disconnection; IP conflict; MAC conflict); video loss; video tampering; camera offline; audio detection |
| Intelligent Alarm | Face detection; face recognition; perimeter protection; SMD Plus; people counting; stereo analysis; heat map |
| Alarm Linkage | Record; snapshot; IPC external alarm output; audio; buzzer; log; preset; email |
DHI-NVR4432-EI Port & Interfaces
| Feature | Specification |
| Audio Input | 1-channel RCA |
| Audio Output | 1-channel RCA |
| Alarm Input | 16 channels |
| Alarm Output | 4 channels |
| Disk Interface | 4 SATA ports, up to 20 TB (The maximum HDD capacity varies with environment temperature) |
| RS-232 | 1 port |
| RS-485 | 1 port |
| USB | 2 (1 front USB 2.0 port, 1 rear USB 3.0 port) |
| HDMI | 1 |
| VGA | 1 |
| Network Port | 2 (10/100/1000 Mbps Ethernet port, RJ-45) |
DHI-NVR4432-EI General Specifications
| Feature | Specification |
| Power Supply | 100–240 VAC, 50–60 Hz |
| Power Consumption | <10 W (without HDD) |
| Net Weight | 4.25 kg (9.37 lb) |
| Gross Weight | 6.35 kg (14.00 lb) |
| Product Dimensions | 440.0 mm × 415.6 mm × 76.0 mm (17.32″ × 16.36″ × 2.99″) (W × D × H) |
| Packaging Dimensions | 529.0 mm × 499.0 mm × 211.0 mm (20.83″ × 19.65″ × 8.31″) (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 |
FCC: 47 CFR FCC Part15, SubpartB, Class A
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
|
Reviews
There are no reviews yet.