Dahua 4 Channel DVR – DH-4B04-I

Product Overview

The Dahua DH-4B04-I 4 Channel DVR is a compact and powerful surveillance recording solution designed for homes, offices, shops, warehouses, small businesses and other security applications. It supports multiple camera technologies including HDCVI, AHD, TVI, CVBS and IP cameras, making it a versatile choice for both new CCTV installations and system upgrades.

Powered by Dahua’s WizSense AI technology, the DVR supports SMD Plus human and vehicle detection on up to 4 analog channels, helping reduce false alarms caused by environmental movements such as rain, leaves and lighting changes. It also supports AI Coding and efficient H.265+/H.265 video compression to help reduce storage and bandwidth requirements.

The recorder supports 4 BNC analog camera inputs and can also support up to 5 IP camera channels, with IP cameras up to 2MP and up to 20 Mbps incoming bandwidth on the published XVR1B04-I specification.

Key Features

4 Channel CCTV DVR / XVR
Dahua WizSense technology
4-channel SMD Plus for human and vehicle detection
Supports HDCVI, AHD, TVI and CVBS cameras
Supports up to 5 IP camera channels
IP camera support up to 2MP per channel
H.265+/H.265 dual-stream video compression
AI Coding for improved storage efficiency
Up to 1080N / 720P recording resolution
HDMI and VGA video output
Supports 1 SATA HDD, up to 6TB according to Dahua’s specification
USB backup
RJ-45 network connectivity
Remote monitoring through network connectivity
Motion detection, video loss and camera tampering detection
Compact desktop installation design

Technical Specifications

Specification	Details
Brand	Dahua
Model	DH-4B04-I*
Recorder Type	4 Channel Penta-brid DVR / XVR
Series	Cooper I Series / WizSense
Analog Video Input	4 × BNC
Supported Camera Types	HDCVI / AHD / TVI / CVBS
IP Camera Input	Up to 5 channels
IP Camera Resolution	Up to 2MP per channel
Incoming Bandwidth	Up to 20 Mbps
Recording Bandwidth	Up to 20 Mbps
Video Compression	AI Coding / H.265+ / H.265 / H.264+ / H.264
Recording Resolution	1080N / 720P / 960H / D1 / CIF
Recording Frame Rate	Up to 25/30 fps depending on resolution/system
SMD Plus	Up to 4 channels
AI Detection	Human and Vehicle
HDMI Output	1
VGA Output	1
Audio Input	1 × RCA
Audio Output	1 × RCA
Two-Way Talk	Supported
HDD Interface	1 × SATA
Maximum HDD Capacity	Up to 6TB*
USB	2 × USB 2.0
Network	1 × RJ-45 10/100 Mbps
Power Supply	12V DC, 1.5A
Power Consumption	Less than 7W without HDD
Operating Temperature	-10°C to +45°C
Installation	Desktop
Approx. Dimensions	197 × 203.1 × 41.5 mm
Approx. Net Weight	0.55 kg

*Please verify the exact model/variant printed on the product label before listing, because Dahua has multiple closely related 4-channel XVR model variants and specifications can differ slightly between versions.

Why Choose Dahua DH-4B04-I?

AI-Based Human & Vehicle Detection

The built-in SMD Plus technology helps distinguish humans and vehicles from common environmental movements, making security alerts more useful and reducing unnecessary notifications.

Multi-Format Camera Compatibility

The DVR supports HDCVI, AHD, TVI and CVBS cameras, allowing users to connect different types of analog CCTV cameras without requiring a completely new surveillance system.

Efficient Video Storage

With H.265+/H.265 compression and AI Coding, the recorder is designed to reduce video storage and bandwidth requirements while maintaining useful image detail.

IP Camera Expansion

In addition to the 4 analog camera inputs, the recorder can support IP camera channels, providing flexibility when expanding or upgrading an existing CCTV system.

Ideal For

Home CCTV security
Shops and retail stores
Offices
Warehouses
Small businesses
Clinics and commercial premises
Schools and institutions
Residential buildings
Small factories
CCTV system upgrades

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