DH-NVR2104HS-4KS3 is a compact 4-channel network video recorder built to deliver reliable AI-powered surveillance for homes, retail stores, and small offices. Housed in a slim 1U design with a single HDD bay, this recorder combines an industrial-grade processor with an embedded Linux operating system for stable, continuous performance.
The DH-NVR2104HS-4KS3 supports IP camera resolutions up to 12MP and handles a total bandwidth of 80 Mbps incoming, 80 Mbps recording, and 60 Mbps outgoing, giving users the flexibility to run high-resolution cameras without sacrificing performance. Decoding capability reaches up to 6 channels at 1080p@30fps, ensuring smooth multi-camera viewing on a single screen.
Built-in AI features set this recorder apart in its class. The DH-NVR2104HS-4KS3 includes SMD (Smart Motion Detection) processed directly by the recorder, plus support for SMD Plus and perimeter protection when paired with compatible cameras. These features apply secondary filtering to distinguish humans and vehicles from false triggers like leaves, rain, or lighting changes — reducing nuisance alerts significantly.
Video compression is handled through Smart H.265+, H.265, Smart H.264+, and H.264 codecs, cutting storage requirements while maintaining clear footage. The unit supports one SATA HDD bay with capacity up to 20TB, along with backup options via USB device or network, giving administrators dependable archiving choices.
For display and connectivity, the DH-NVR2104HS-4KS3 offers simultaneous HDMI and VGA outputs, with HDMI supporting resolutions up to 4K (3840×2160). ONVIF compatibility ensures smooth integration with third-party IP cameras, while remote mobile access via iOS and Android apps keeps users connected from anywhere.
Alarm handling covers motion detection, external camera alarms, PIR sensors, video loss, tampering, and camera offline events, with linked responses including recording, snapshots, buzzer alerts, and email notifications.
Compact and lightweight at just 0.85kg, the DH-NVR2104HS-4KS3 is designed for easy desktop installation and operates reliably across a wide temperature range of -10°C to +55°C. Backed by CE certification, it’s a smart, AI-ready choice for anyone building or upgrading a small-scale IP surveillance system that needs smarter alerts without added complexity.
DH-NVR2104HS-4KS3 System
| Feature | Specification |
| Main Processor | Industrial-grade processor |
| Operating System | Embedded Linux |
| Operating Interface | Web, Local GUI |
DH-NVR2104HS-4KS3 AI & Analytics
| Feature | Specification |
| AI by Recorder | SMD Plus |
| AI by Camera | Perimeter protection, SMD |
| Perimeter Protection (Camera AI) | All channels (4 targets/s) |
| SMD Plus by Recorder | 4 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain, and lighting condition change |
| SMD Plus by Camera | All channels (8 targets/s) |
DH-NVR2104HS-4KS3 Audio and Video
| Feature | Specification |
| Access Channel | 4 channels |
| Network Bandwidth | 80 Mbps incoming, 80 Mbps recording, 60 Mbps outgoing |
| Resolution | 12 MP, 8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 1080p, 720p, 960p, D1, CIF, QCIF |
| Decoding Capability (AI Disabled) | 1 ch @ 12 MP (30 fps), 1 ch @ 8 MP (30 fps), 2 ch @ 6 MP (30 fps), 2 ch @ 5 MP (30 fps), 3 ch @ 4 MP (30 fps), 6 ch @ 1080p (30 fps) |
| Decoding Capability (AI Enabled) | 1 ch @ 8 MP (30 fps), 1 ch @ 6 MP (30 fps), 1 ch @ 5 MP (30 fps), 2 ch @ 4 MP (30 fps), 4 ch @ 1080p (30 fps) |
| Video Output |
1 HDMI, 1 VGA
• HDMI: 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720
• VGA: 1920 × 1080, 1280 × 1024, 1280 × 720
|
| Multi-screen Display | 1 / 4 split |
| Third-party Camera Access | ONVIF |
DH-NVR2104HS-4KS3 Compression Standard
| Feature | Specification |
| Video Compression | Smart H.265+, H.265, Smart H.264+, H.264, MJPEG |
| Audio Compression | G.711a, G.711u, PCM, G726 |
DH-NVR2104HS-4KS3 Network
| Feature | Specification |
| Network Protocol | HTTP, HTTPS, TCP/IP, IPv4, IPv6, UDP, NTP, DHCP, DNS, SMTP, IP Filter, DDNS, IP Search (Supports IP camera, DVR, NVS, etc.), P2P, Auto Registration |
| Mobile Phone Access | iOS, Android |
| Interoperability | ONVIF 23.12 (Profile T, Profile S, Profile G), CGI, SDK |
| Browser | Chrome, IE, Safari, Edge, Firefox |
DH-NVR2104HS-4KS3 Recording Playback
| Feature | Specification |
| Multi-channel Playback | Up to 4 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 |
DH-NVR2104HS-4KS3 Alarm
| Feature | Specification |
| General Alarm | Motion detection, camera external alarm, PIR alarm |
| Anomaly Alarm | Error (no disk, disk error, low space, low quota space, network disconnection, IP conflict, MAC conflict), video loss, video tampering, camera offline |
| Intelligent Alarm | Perimeter protection, SMD Plus |
| Alarm Linkage | Recording, snapshot, buzzer, log, preset, email, tour |
DH-NVR2104HS-4KS3 Port & Interfaces
| Feature | Specification |
| Audio Input | 1-channel RCA |
| Audio Output | 1-channel RCA |
| Alarm Input | NA (2 channels are optional) |
| Alarm Output | NA (1-channel 12 V 1 A output is optional) |
| Disk Interface | 1 SATA port (up to 20 TB; limit varies depending on environment temperature) |
| USB | 2 × USB 2.0 (1 front, 1 rear) |
| HDMI | 1 port |
| VGA | 1 port |
| Network Port | 1 × RJ-45 (10/100 Mbps Ethernet port) |
DH-NVR2104HS-4KS3 General Specifications
| Feature | Specification |
| Power Supply | 12 VDC, 1.5 A |
| Power Consumption | <10 W (without HDD) |
| Net Weight | 0.85 kg (1.87 lb) |
| Gross Weight | 1.39 kg (3.06 lb) |
| Product Dimensions | 260.0 mm × 232.5 mm × 47.6 mm (10.24″ × 9.15″ × 1.87″) (W × D × H) |
| Packaging Dimensions | 334.0 mm × 89.0 mm × 314.0 mm (13.15″ × 3.50″ × 12.36″) (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 |
| Certifications |
CE-LVD: IEC 62368-1:2014
CE-EMC: EN IEC 61000-3-2:2019, EN 61000-3-3:2013+A1:2019, EN 55032:2015+A11:2020, EN 55035:2017+A11:2020, EN 55024:2010+A1:2015, EN 50130-4:2011+A1:2014
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