Dahua NVR-NV21A08-P8-S3 8 Channel PoE Network Video Recorder – Compact 1U, 1 HDD, H.265+ & SMD Plus

The Dahua NVR-NV21A08-P8-S3 8 Channel PoE Network Video Recorder is a compact IP security recording solution designed for residential and commercial surveillance installations.

Featuring 8 integrated PoE ports, 1 HDD bay, Smart H.265+ video compression, adaptive decoding and AI analytics supported by compatible cameras, this recorder provides a convenient foundation for an eight-camera IP security system.

Its compact 1U design makes it suitable for homes, retail stores, offices, warehouses and small commercial properties requiring centralized video recording.

Key Features

• 8-Channel IP Camera Recording: Supports up to eight compatible network security cameras.
• 8 Built-In PoE Ports: Provides network and power connectivity for compatible PoE IP cameras.
• 1 HDD Bay: Supports installation of one compatible surveillance hard drive.
• Compact 1U Design: Space-efficient network video recorder.
• Smart H.265+ Compression: Helps manage recording storage and bandwidth.
• Multiple Video Formats: Smart H.265+, H.265, Smart H.264+ and H.264.
• Adaptive Decoding: Supports adaptive video decoding.
• Maximum Decoding Capability: 6 × 1080p at 30 fps.
• AI Perimeter Protection Support: Supports perimeter protection generated by compatible cameras.
• SMD Plus Support: Supports intelligent motion detection from compatible cameras.
• Third-Party IP Camera Connectivity: Supports compatible third-party network cameras.
• Security Baseline 2.1: Incorporates the specified security baseline.

Eight-Channel IP Security Camera Recording

The Dahua NVR-NV21A08-P8-S3 supports up to eight compatible IP cameras.

It provides centralized recording for multiple monitoring locations, including entrances, driveways, retail stores, offices and commercial properties.

The maximum supported camera recording resolution should be verified against the manufacturer’s technical specifications.

Eight Integrated PoE Ports

The NVR features eight built-in PoE ports for connecting compatible IP security cameras.

Power over Ethernet allows supported cameras to receive electrical power and network connectivity through Ethernet cabling.

Benefits include:

• Simplified camera installation
• Reduced need for individual camera power adapters
• Centralized camera connections
• Convenient setup for eight-camera systems

The total PoE power budget and individual port limits should be confirmed before installation.

Single HDD Bay for Local Recording

The Dahua NVR-NV21A08-P8-S3 features one HDD bay for installing a compatible surveillance hard drive.

Local recording duration depends on the installed hard drive capacity, camera resolution, bitrate, recording schedule and compression format.

Important: The supplier confirms one HDD bay but does not specify whether a hard drive is included.

Smart H.265+ Video Compression

The recorder supports:

• Smart H.265+
• H.265
• Smart H.264+
• H.264

These formats help manage video storage and bandwidth requirements.

Actual compression efficiency depends on camera compatibility, recording settings and scene activity.

Adaptive Video Decoding

The recorder supports adaptive decoding with a maximum specified capability of 6 × 1080p at 30 fps.

This is the decoding capability, not the number of camera channels. The recorder supports up to eight camera channels.

AI Perimeter Protection

The NVR supports perimeter protection events generated by compatible IP cameras.

These functions can help monitor designated security areas and identify supported intrusion-related events.

Available detection rules depend on the connected camera model.

SMD Plus Intelligent Motion Detection

SMD Plus is Dahua’s intelligent motion detection technology.

When used with compatible cameras, it can help classify relevant motion events and improve security alert management.

Important: The supplied specification identifies these functions as AI by Camera. The camera must support the relevant analytics; independent AI processing by the recorder is not confirmed.

Third-Party Network Camera Compatibility

The recorder supports compatible third-party network cameras.

This provides flexibility when integrating IP camera equipment from different manufacturers.

Camera compatibility and available advanced features should be confirmed before installation.

Compact 1U Design

The compact 1U chassis is suitable for space-conscious residential and commercial security installations.

Technical Specifications

Specification	Details
Brand	Dahua
Model	NVR-NV21A08-P8-S3
Product Type	Network Video Recorder
Camera Channels	8
Integrated PoE Ports	8
HDD Bays	1
Form Factor	Compact 1U
Video Formats	Smart H.265+, H.265, Smart H.264+, H.264
Maximum Decoding Capability	6 × 1080p @ 30 fps
Adaptive Decoding	Supported
AI Processing	AI by Compatible Camera
Perimeter Protection	Supported by Compatible Camera
SMD Plus	Supported by Compatible Camera
Third-Party IP Cameras	Supported, Subject to Compatibility
Security Baseline	2.1
Maximum Camera Resolution	Not Specified in Supplied Description
Incoming Recording Bandwidth	Not Specified
Maximum HDD Capacity	Not Specified
HDD Included	Not Confirmed
PoE Power Budget	Not Specified
HDMI Output	Not Confirmed
VGA Output	Not Confirmed
Remote Viewing App	Not Confirmed
Dimensions	Not Specified

Ideal Applications

• Home security systems
• Retail stores
• Offices
• Restaurants
• Small warehouses
• Commercial entrances
• Residential driveways
• Eight-camera IP surveillance installations

Installation and Compatibility Notes

• Confirm compatibility with the intended IP cameras.
• Verify the NVR’s maximum camera recording resolution.
• Check the PoE power budget before connecting cameras.
• Install a compatible surveillance HDD if one is not included.
• Confirm third-party camera compatibility.
• AI features require compatible cameras.
• Verify remote viewing and video output capabilities before purchase.

Buy Dahua 8 Channel PoE NVR in Canada

Shop the Dahua NVR-NV21A08-P8-S3 8 Channel PoE Network Video Recorder at Tech Vision Electronics.

We supply Dahua IP cameras, network video recorders, PoE networking equipment and security system accessories for residential and commercial installations.

Visit our Scarborough store, serving Toronto, Mississauga, Brampton, Markham, Pickering and customers across Canada.

Tech Vision Electronics
1261 Kennedy Road, Unit 4
Scarborough, Ontario M1P 2L4
Phone: 416-551-7334
Website: www.techvisionelectronics.com