Dahua DHI-NVR4232-4KS3 32CH 1U 2HDDs Lite Network Video Recorder

System

Main Processor

Industrial-grade processor

Operating System

Embedded Linux

Operating Interface

Web, Local GUI

AI

AI by Recorder

SMD Plus

AI by Camera

Face detection; face recognition; perimeter protection; SMD Plus; 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)

6 channels

Face Recognition

Face Recognition Performance of AI by Camera (Number of Channels)

6 channels

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 Plus by Camera

6 channels

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; 960p; 720p; D1; CIF; QCIF

Decoding Capability

AI disabled: 1-channel 12 MP@30 fps; 2-channel 8 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 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; 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 22.12(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

Camera disconnection; storage error; disk full; IP conflict; MAC conflict; login locked; and cybersecurity exception

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.

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)

General

Power Supply

12 VDC, 4 A

Power Consumption

Total output of NVR is <10 W(without HDD)

Net Weight

1.49 kg (3.28 lb)

Gross Weight

2.77 kg (6.11 lb)

Product Dimensions

375.0 mm × 282.9 mm × 53.0 mm (14.76″ ×11.14″ × 2.09″) (W × D × H)

Packaging Dimensions

433.0 mm × 141.0 mm × 366.0 mm (17.05″ × 5.55″ × 14.41″) (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

Installation

Rack or desktop

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