Dahua NVR2104HS-S3 – 4-Channel Network Video Recorder
| Model | NVR2104HS-S3 |
| Product Type | 4-Channel Network Video Recorder |
| IP Camera Inputs | 4 Channels |
| Built-in PoE Ports | None (External PoE Switch Required for PoE Cameras) |
| Operating System | Embedded Linux |
| Processor | Industrial-Grade Embedded Processor |
| Operating Interface | Web Browser, Local GUI |
| Maximum Camera Resolution | Up to 12 MP |
| Supported Resolutions | 12 MP, 8 MP, 5 MP, 4 MP, 3 MP, 2 MP, 720p, D1 |
| Incoming Bandwidth | 80 Mbps |
| Recording Bandwidth | 80 Mbps |
| Outgoing Bandwidth | 60 Mbps |
| Video Compression | Smart H.265+, H.265, Smart H.264+, H.264 |
| Audio Compression | PCM, G.711A, G.711U, G.726 |
| Decoding Capability | 1 × 12 MP @ 30 fps; 1 × 8 MP @ 30 fps; 2 × 5 MP @ 30 fps; 3 × 4 MP @ 30 fps; 6 × 1080p @ 30 fps |
| HDMI Output | 1 × HDMI |
| VGA Output | 1 × VGA |
| Video Output Modes | Simultaneous HDMI/VGA Output |
| Multi-Screen Display | 1/4 Views |
| Simultaneous Playback | Up to 4 Channels |
| AI by Recorder | No Built-in AI Analytics |
| Perimeter Protection by Camera | Up to 4 Channels |
| SMD Plus by Camera | Up to 4 Channels (Human/Vehicle Classification) |
| Intelligent Video Search | AI Search with Compatible Cameras |
| Recording Modes | Manual, Scheduled, Motion Detection, Alarm |
| Alarm Functions | Motion Detection, Privacy Masking, Video Loss, PIR Alarm |
| System Alerts | Camera Offline, Storage Error, Disk Full, IP Conflict, Login Lock |
| Storage Interface | 1 × SATA HDD |
| Maximum HDD Capacity | Up to 16 TB |
| Network Interface | 1 × RJ-45 (10/100 Mbps) |
| Network Protocols | HTTP, HTTPS, TCP/IP, IPv4, RTSP, UDP, NTP, DHCP, DNS, SMTP, UPnP, DDNS, P2P |
| ONVIF Compatibility | Profiles S, G, T |
| USB Ports | 2 × USB 2.0 (1 Front, 1 Rear) |
| Audio Input / Output | 1 × Input / 1 × Output |
| Remote Access | Web Browser, Android, iOS |
| Backup Options | USB Device |
| Power Supply | 12 VDC, 1.5 A |
| Power Consumption | ≤ 10 W (without HDD) |
| Operating Temperature | -10°C to +55°C |
| Operating Humidity | 10%–93% RH |
| Dimensions | 260 × 232.7 × 47.6 mm |
| Net Weight | 0.81 kg |
| Installation | Desktop or Rack |
| Certifications | CE, FCC |















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