Dahua NVR2104HS-4KS3 – 4-Channel 4K Network Video Recorder
| Model | NVR2104HS-4KS3 |
| Product Type | 4-Channel Network Video Recorder |
| IP Camera Inputs | 4 Channels |
| Operating System | Embedded Linux |
| Processor | Industrial-Grade Processor |
| Maximum Camera Resolution | Up to 12 MP |
| Incoming Bandwidth | 80 Mbps |
| Recording Bandwidth | 80 Mbps |
| Outgoing Bandwidth | 60 Mbps |
| Video Compression | Smart H.265+, H.265, Smart H.264+, H.264, MJPEG |
| Audio Compression | G.711a, G.711u, PCM, G.726 |
| Decoding Capability | Up to 6 × 1080p @ 30 fps (AI Disabled) |
| Maximum Decoding Resolution | 12 MP @ 30 fps (AI Disabled) |
| HDMI Output | 1 × HDMI, up to 4K (3840 × 2160) |
| VGA Output | 1 × VGA, up to 1920 × 1080 |
| Multi-Screen Display | 1/4 Channels |
| Simultaneous Playback | Up to 4 Channels |
| AI by Recorder | 4-Channel SMD Plus (Human/Vehicle Detection) |
| AI by Camera | Perimeter Protection, SMD Plus |
| Recording Modes | Continuous, Motion Detection, Intelligent, Alarm |
| Storage Interface | 1 × SATA HDD |
| Maximum HDD Capacity | Up to 20 TB |
| Network Interface | 1 × RJ-45 (10/100 Mbps) |
| Network Protocols | HTTP, HTTPS, TCP/IP, IPv4/IPv6, UDP, NTP, DHCP, DNS, SMTP, DDNS, P2P |
| ONVIF Compatibility | Profile S, G, T |
| USB Ports | 2 × USB 2.0 (Front and Rear) |
| Audio Input / Output | 1 × RCA Input / 1 × RCA Output |
| Remote Access | Web Browser, iOS, Android |
| Backup Options | USB Device, Network |
| PoE Ports | None (External PoE Switch Required) |
| Power Supply | 12 VDC, 1.5 A |
| Power Consumption | Less than 10 W (without HDD) |
| Operating Temperature | -10°C to +55°C |
| Operating Humidity | 10%–93% RH, Non-Condensing |
| Dimensions | 260 × 232.5 × 47.6 mm |
| Net Weight | 0.85 kg |















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