Dahua NVR4104-4KS2/L – 4-Channel 4K Network Video Recorder
| Model | NVR4104-4KS2/L |
| Product Type | 4-Channel 4K Network Video Recorder |
| IP Camera Inputs | 4 Channels |
| Built-in PoE Ports | None (External PoE Switch Required) |
| Operating System | Embedded Linux |
| Processor | Industrial-Grade Embedded Processor |
| Maximum Camera Resolution | Up to 8 MP (4K) |
| 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 | PCM, G.711A, G.711U, G.726, AAC |
| Decoding Capability | Up to 8 × 1080p @ 30 fps |
| HDMI Output | 1 × HDMI, up to 4K (3840 × 2160) |
| VGA Output | 1 × VGA |
| Video Output Modes | Simultaneous HDMI/VGA Output |
| Multi-Screen Display | 1/4 Channels |
| Simultaneous Playback | Up to 4 Channels |
| Perimeter Protection by Camera | Up to 4 Channels |
| Face Detection by Camera | Up to 4 Channels |
| SMD Plus by Camera | Up to 4 Channels (Human/Vehicle Classification) |
| Other Supported Camera AI | IVS, People Counting, Heat Map |
| Recording Modes | Manual, Alarm, SMD, Smart Recording |
| Storage Interface | 1 × SATA III HDD |
| Maximum HDD Capacity | Up to 10 TB |
| Network Interface | 1 × RJ-45 (10/100 Mbps) |
| Network Protocols | HTTP, HTTPS, TCP/IP, IPv4/IPv6, RTSP, UDP, DHCP, DNS, DDNS, NTP, SMTP, FTP, P2P, SNMP, UPnP |
| ONVIF Compatibility | Profiles S, G, T |
| USB Ports | 2 × USB 2.0 (Rear) |
| Audio Input / Output | 1 × RCA Input / 1 × RCA Output |
| Remote Access | Web Browser, Android, iOS |
| Backup Options | USB Storage, Network Storage |
| Power Supply | 12 VDC, 2 A |
| Power Consumption | Less than 10 W (without HDD, idle) |
| Operating Temperature | -10°C to +50°C |
| Operating Humidity | 10%–93% RH |
| Dimensions | 204.6 × 206.4 × 48.1 mm |
| Net Weight | 0.45 kg |















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