By Dahua
Dahua DHI-NVR4232-16P-4KS3 32 Channel 4K NVR
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- 32-Channel 4K & 12 MP Access: Connects up to 32 IP cameras at up to 12 MP resolution with 160 Mbps bandwidth and 4K (3840 × 2160) HDMI video output.
- Plug-and-Play 16-Port PoE: Built-in 16-port PoE switch delivers network and power over single cables with a 130 W total budget (up to 25.5 W per port).
- AI by Recorder SMD Plus: 2-channel Smart Motion Detection distinguishes humans and vehicles to filter out false alarms from weather and foliage.
- Dual SATA 40 TB Capacity: 2 SATA bays supporting up to 20 TB per HDD provide extensive multi-camera video storage retention.
- Smart H.265+ Compression: Optimizes bandwidth and storage efficiency while supporting 16-channel simultaneous playback. Smart Camera AI Integration: Fully supports camera-based perimeter protection, face detection, facial recognition, and crowd heat maps.
Dahua DHI-NVR4232-16P-4KS3 32 Channel 4K NVR
Details
High-Density 32-Channel 4K Processing with 16-Port PoE
The Dahua DHI-NVR4232-16P-4KS3 is a high-capacity 32-channel 1U Network Video Recorder engineered for medium-to-large surveillance deployments across commercial offices, warehouses, retail centers, and residential complexes. Supporting IP cameras up to 12 MP resolution and 4K HDMI output (3840 × 2160), it provides crystal-clear live view and playback. Featuring 16 integrated PoE ports with a 130 W total power budget, the unit simplifies multi-camera installations by delivering data and power over single Ethernet cables.
Intelligent SMD Plus and Deep Camera AI Linkage
Equipped with on-board SMD Plus by Recorder across 2 channels, the NVR accurately classifies human and motor vehicle targets, eliminating false triggers from moving trees, heavy rain, or changing light. When connected to compatible Dahua AI cameras, the system unlocks enterprise intelligence, including 6-channel perimeter protection, face detection and recognition, people counting, stereo analysis, and crowd heat mapping.
Dual SATA Storage, Smart Codec, and Peripheral Integration
- High-Capacity 2-Bay Storage: 2 SATA interfaces support up to 20 TB per hard drive (40 TB total) for extended continuous recording.
- Smart H.265+ Compression: Significantly reduces transmission bitrate and storage consumption while preserving 4K forensic details.
- Flexible Multi-Screen Display: Supports simultaneous and heterogeneous display modes across HDMI (up to 4K) and VGA (up to 1080p).
- Industrial I/O Connectivity: Equipped with 4 alarm inputs, 2 alarm outputs, RCA audio in/out, and RS-232 serial control.
Specification
| System | |
| Main Processor | Industrial-grade processor |
| Operating System | Embedded Linux |
| Operating Interface | Web, Local GUI |
| AI | |
| AI by Recorder | SMD |
| AI by Camera | Face detection; face recognition; perimeter protection; SMD; people counting; stereo analysis; heat map |
| Perimeter Protection | |
| Perimeter Performance of AI by Camera (Number of Channels) | 6 channels |
| Face Detection | |
| Face Attributes | Gender; age group; glasses; expressions; face mask; beard |
| Face Detection Performance of AI by Camera (Number of Channels) | All channels (6 targets/s) |
| Face Recognition | |
| Face Recognition Performance of AI by Camera (Number of Channels) | All channels (6 targets/s) |
| SMD Plus | |
| SMD Plus by Recorder | 2 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain and lighting condition change |
| SMD by Camera | All channels (12 targets/s) |
| Audio and Video | |
| Access Channel | 32 channels |
| Network Bandwidth | AI disabled: 160 Mbps incoming, 128 Mbps recording and 60 Mbps outgoing AI enabled: 80 Mbps incoming, 80 Mbps recording and 60 Mbps outgoing |
| Resolution | 12 MP;8 MP;6 MP;5 MP;4 MP;3 MP;1080p;720p;960p;D1;CIF;QCIF |
| Decoding Capability | AI disabled: 1-channel 12 MP@30 fps; 2-channel 8 MP@30 fps; 2-channel 6 MP@30 fps; 3-channel 5 MP@30 fps; 4-channel 4 MP@30 fps; 8-channel 1080p@30 fps AI enabled: 1-channel 12 MP@30 fps; 1-channel 8 MP@30 fps; 2-channel 6 MP@30 fps; 2-channel 5 MP@30 fps; 3-channel 4 MP@30 fps; 7-channel 1080p@30 fps |
| Video Output | 1 HDMI, 1 VGA Simultaneous： HDMI: 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720 VGA: 1920 × 1080, 1280 × 1024, 1280 × 720 Heterogeneous： HDMI: 1920 × 1080, 1280 × 1024, 1280 × 720 VGA: 1920 × 1080, 1280 × 1024, 1280 × 720 |
| Multi-screen Display | AI disabled: Main Screen: 1/4/8/9/16/25/36, Sub Screen: 1/4/8/9/16 AI enabled: 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 |
| Compression Standard | |
| Video Compression | Smart H.265+; H.265; Smart H.264+; H.264 |
| Audio Compression | G.711a; G.711u; PCM; G726 |
| Network | |
| 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.) |
| Mobile Phone Access | iOS; Android |
| Interoperability | ONVIF 24.12 (Profile T; Profile S; Profile G); CGI; SDK |
| Browser | Chrome; IE; Safari; Edge; Firefox |
| Recording Playback | |
| 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 |
| Storage | |
| Disk Group | Yes |
| Alarm | |
| 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; 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 |
| Port | |
| Audio Input | 1-channel RCA |
| Audio Output | 1-channel RCA |
| Alarm Input | 4 channels |
| Alarm Output | 2 channels (1-channel 12 V 1 A output） |
| Disk Interface | 2 SATA ports. Each disk can contain up to 20 TB. This limit varies depending on the environment temperature. |
| RS-232 | 1 |
| USB | 2 (1 front USB 2.0 port, 1 rear USB 2.0 port) |
| HDMI | 1 |
| VGA | 1 |
| Network Port | 1 (10/100/1000 Mbps Ethernet port, RJ-45) |
| PoE Port | 16 ports, 10/100 Mbps, IEEE 802.3 af/at |
| General | |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Power Consumption | Total output of NVR is <10 W(without HDD) Total output power of PoE is 130 W, the maximum output power of a single port is 25.5 W |
| Net Weight | 2.60 kg (5.73 lb) |
| Gross Weight | 3.80 kg (8.38 lb) |
| Product Dimensions | 375.0 mm × 327.9 mm × 53.0 mm (14.76" × 12.91" × 2.09") (W × D × H) |
| Packaging Dimensions | 451.0 mm × 147.0 mm × 425.0 mm (17.76" × 5.79" × 16.73") (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 |