The Dahua DHI-NVR5432-16P-I is a powerful AI-enabled network video recorder designed for demanding multi-camera systems. With 32 channel IP input, built-in face recognition, and up to 4 HDD bays, it supports large-scale surveillance environments that require fast, intelligent video search and analysis. This NVR helps streamline monitoring, reduce false alarms, and deliver smarter, faster security responses.
Key Features
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32-Channel IP Video Input with 320 Mbps inbound bandwidth
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Face Recognition AI – 4 channels video stream or 16 channels picture stream (FD required)
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Smart Motion Detection Plus (SMD+) – Eliminates non-critical motion alerts
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Fisheye Dewarping – Multiple dewarp modes for optimal playback of panoramic video
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People Counting & Heat Mapping – Ideal for retail, public venues, and crowd analytics
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ANPR Support – Vehicle identification via camera-based LPR
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4-Bay Storage – Up to 4× 10TB drives supported for large video archives
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Dual HDMI + VGA Display Output – Ideal for control room and spot monitor setups
Perfect For:
- Commercial buildings and multi-level offices
- Warehouses and distribution centers
- Hospitals and large clinics
- Government sites and critical infrastructure
- Large retail stores and malls
- University campuses
Install Tips
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Use Built-in PoE Ports to simplify camera wiring, especially on smaller jobs.
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Separate AI Tasks – Run face recognition and perimeter protection on different channels to avoid overloading AI performance.
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Install 7200 RPM or Surveillance-grade HDDs for best performance with high channel counts.
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Enable SMD+ Only Where Needed to save CPU resources and avoid AI bandwidth throttling.
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Connect to Dahua AI Cameras for best feature compatibility (e.g. metadata, face data tagging).
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Use HDMI2 Output for 4K video walls or monitors in control rooms.
Downloads
Quick-Read Specs Card
| Spec |
Detail |
| IP Channels |
32 |
| PoE Ports |
16 (1–8 support ePoE & EoC) |
| Face Recognition |
4-ch video stream or 16-ch image stream |
| Face Database |
20 DBs, 100,000 images total |
| AI Features |
Face recognition, perimeter protection, SMD+ |
| Max Decoding |
4ch @ 8MP / 16ch @ 1080p |
| Audio |
RCA 1-in / 1-out + 2-way talk |
| Storage |
4x SATA (up to 10TB each), 1x eSATA |
| Output |
HDMI1: 1080p |
| Mobile App |
iOS, Android |
| Power |
100–240V AC, 150W PoE total |
| Dimensions |
440mm × 411mm × 76mm (1.5U) |
Extra Info
AI Face Recognition
This NVR model features advanced facial recognition processing, capable of handling up to 22 face comparisons per second. It can store and match against up to 100,000 face profiles, making it ideal for environments where rapid identity verification is critical. Key benefits include:
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Real-time face matching and alerts, triggered when a person from a whitelist or blacklist is detected
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Scalable face database management, with support for multiple lists (e.g., staff, visitors, VIPs, flagged individuals)
- Excellent for access control, time and attendance monitoring, or security enforcement in sectors such as education, transportation, government, or corporate facilities
SMD Plus & Perimeter AI
This NVR supports Smart Motion Detection Plus (SMD+) and Perimeter Protection AI, enabling smarter event filtering and reducing false alarms. These features use deep-learning object classification to differentiate between human, vehicle, and non-threatening motion (like wind-blown leaves or animals). Applications include:
- Intrusion detection
- Tripwire/line crossing
- Zone monitoring
With SMD+ enabled, the system becomes much more reliable for event-driven recording and alerts, which is especially useful in outdoor environments, open lots, or areas with unpredictable movement.
Metadata Extraction & Smart Search
The system automatically extracts and tags rich metadata from supported cameras, allowing operators to search recorded footage by specific attributes rather than manually reviewing hours of video. Searchable criteria include:
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Human attributes – such as gender, hat, mask presence, or clothing color
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Vehicle data – including license plate, color, body type (car, truck, motorcycle), and brand
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Event behavior – such as loitering or motion direction
This capability enables fast retrieval of relevant clips, improving investigative response time and simplifying compliance reviews in industries like retail, law enforcement, and logistics.
Third-party Compatibility
This NVR supports integration with a wide range of IP cameras and systems through ONVIF 2.4 compliance and SDK/API support. It can be deployed in:
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Mixed-brand environments, where existing non-Dahua cameras need to be retained
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Hybrid upgrade projects, where some cameras are new and others are legacy models
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Enterprise systems, requiring integration into larger VMS platforms or third-party access control
This flexibility ensures that users are not locked into a single brand ecosystem and can scale or evolve their systems without starting over.
Recording Flexibility
The NVR offers a variety of recording modes to suit different operational needs and risk levels. Users can configure:
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Continuous recording, for 24/7 coverage
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Scheduled recording, based on working hours or low-traffic periods
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Event-based triggers, including:
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Intrusion and line-crossing detection
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Facial recognition matches (stranger or known face)
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SMD+ events (human/vehicle detection)
This level of control allows organizations to optimize storage usage, reduce unnecessary recordings, and prioritize footage from high-risk or high-traffic zones.
Q&A
Q: Can this record in full 4K from supported cameras?
A: Yes, it supports 4K input and output, with decoding at up to 4ch @ 8MP.
Q: How many cameras can run face recognition at once?
A: Up to 4 channels of face recognition video stream, or 16 channels using image stream with Dahua FD cameras.
Q: Can I use this NVR with Hikvision or Axis IP cameras?
A: Yes, it supports third-party integration via ONVIF, SDK, and CGI.
Q: Does it support audio recording and talkback?
A: Yes, it has 2-way audio (RCA input/output) and supports audio-enabled IP cameras.
Q: Can the face database store visitor info?
A: Yes, it supports gender, age, name, address, ID fields, and applies each database to specific channels.
Q: Will AI slow down recording or streaming?
A: When AI functions are active, max incoming bandwidth is 160 Mbps (vs 320 Mbps without). Allocate AI functions accordingly.
Q: How many users can access remotely?
A: Supports up to 128 remote users simultaneously.
Q: Does this model support RAID?
A: No RAID configuration listed — manual or scheduled backup recommended for redundancy.
