DAHUA NVR2104-S3 4 Channel Smart 1U 1HDD Network Video Recorder

In stock
SKU: NVR2104-S3
Regular price $72.00
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    Order and Pricing Information for Surveillance Products
    Please note the following important details when ordering surveillance products from CCTV-MALL:
  • Minimum order amount: Orders must exceed $1000 or equivalent.
  • The prices listed, such as $1000000 or $1,534,590.00, are placeholders and do not reflect the actual prices. These products on this page are typically specialized for project-specific requirements, and pricing depends on various factors such as the required quantity and any other project-specific requirements.
  • Final pricing: Prices mentioned are subject to the final Proforma Invoice (PI) prices provided after order confirmation.
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  • Genuine products: We guarantee official original DAHUA products with the latest firmware versions.
  • Technical support: As authorized distributors, we provide official technical support.
  • Warranty coverage: For project-based orders, the manufacturer provides local warranty, while we offer warranty support for dealer orders.
  • If you have any questions or need further assistance, please feel free to contact us. We are committed to providing you with the best price and service for your DAHUA surveillance product needs.
Quality Certifications:



> Smart H.265+/H.265/Smart H.264+/H.264 decoding format

> Max. decoding capability: 6 × 1080p@30 fps. Supports adaptive decoding

> AI by camera: perimeter protection,and SMD Plus

> Connected to the third-party network cameras

> Security baseline 2.1

Product Data


Main Processor

Industrial-grade embedded processor

Operating System

Embedded Linux

Operating Interface

Web; Local GUI


AI by Camera

Perimeter protection; SMD Plus

Perimeter Protection

Perimeter Performance of AI by Camera (Number of Channels)


SMD Plus

SMD Plus by Camera

4-channel SMD Plus (AI by camera), secondary filtering for human and motor vehicle SMD Plus, reducing false alarms caused by leaves, rain and lighting condition change

Audio and Video

Access Channel

4 channels

Network Bandwidth

Access: 80 Mbps; Storage: 80 Mbps; Forward: 60 Mbps


12MP; 8MP; 5MP; 4MP; 3MP; 2MP; 720p; D1

Decoding Capability

1-channel 12MP@30 fps; 1-channel 8MP@30 fps; 2-channel 5MP@30 fps; 3-channel 4MP@30 fps; 6-channel 1080p@30 fps

Video Output

1 × VGA, 1 × HDMI (simultaneous)

Multi-screen Display

1, 4 views

Third-party Camera Access


Compression Standard

Video Compression

Smart H.265; H.265; Smart H.264; H.264

Audio Compression

PCM; G711A; G711U; G726


Network Protocol

HTTP; HTTPS; TCP/IP; IPv4; RTSP; UDP; NTP; DHCP; DNS; SMTP; UPnP; IP Filter; DDNS; Alarm Server; IP Search (Supports Dahua IP camera, DVR, NVS, etc.); P2P

Mobile Phone Access

Android; iOS


ONVIF (profile T/S/G); CGI; SDK


Chrome; IE 9 or later; Firefox

Recording Playback

Multi-channel Playback

Up to 4 channels

Record Mode

Manual record; alarm record; motion detection record; schedule record

Storage Method

Local HDD and network

Backup Method

USB device

Playback Function

1. Play; pause; stop; fast forward; fast backward; rewind; play by frame
2. Full screen; backup (video clip/file); partially zom in; audio on/off


General Alarm

Motion detection; privacy masking; video loss; PIR alarm

Anomaly Alarm

Camera offline; storage error; disk full; IP conflict; MAC conflict; login lock; cyber security exception

Intelligent Alarm

Perimeter protection; SMD Plus

Alarm Linkage

Recording; snapshot; buzzer; log; preset; email; tour


Audio Input


Audio Output


HDD Interface

1 SATA port, up to 16 TB. The maximum HDD capacity varies with environment temperature


2 rear USB 2.0 ports





Network Port

1 × RJ-45, 10/100 Mbps self-adaptive Ethernet port


Power Supply

12 VDC, 1.5 A

Power Consumption

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

Net Weight

0.42 kg (0.93 lb)

Gross Weight

1.03 kg (2.27 lb)

Product Dimensions

204.6 mm × 206.4 mm × 45.6 mm (8.06" × 8.13" × 1.80") (W × L × H)

Packaging Dimensions

96 mm × 364 mm × 261 mm (3.78" × 14.33" × 10.28") (W × L × H)

Operating Temperature

–10 °C to +55 °C (14 °F to +131 °F)

Operating Humidity

10%–93% (RH)


Rack or desktop


CE: EN62368-1; EN55032; EN55024; EN55035; EN61000-3-2; EN61000-3-3; EN50130-4
FCC: Part 15 Subpart B

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