General Features:

• Model: NVR4000
• Product Type: Network Video Recorder (NVR)
• Channels: 4 channels

Video Input:

• Input Ports:
  • 4 × IP Camera Inputs
• Resolution Support:
  • Up to 4K (3840 × 2160) recording and playback

Recording:

• Recording Resolution:
  • Up to 4K (3840 × 2160) at 15 fps (frames per second)
  • 1080p at 30 fps
• Recording Modes: Manual, Continuous, Motion Detection, Alarm, and Scheduled

Compression:

• Video Compression Standards:
  • H.265
  • H.264
  • H.264+
• Audio Compression: G.711

Storage:

• Internal Storage:
  • 1 × SATA HDD
  • HDD Capacity: Up to 8 TB
• Backup: Support for external backup via USB or network

Playback:

• Playback Channels: Up to 4 channels simultaneous playback
• Playback Resolution: Up to 4K (3840 × 2160)
• Playback Features: Fast forward, rewind, pause, zoom, and search

Network:

• Network Interface:
  • 1 × RJ45 10M/100M/1000M Ethernet port
• Network Protocols: TCP/IP, HTTP, DHCP, DNS, RTP, RTSP, IPv4
• Remote Access:
  • Mobile App: DMSS (Dahua Mobile Surveillance)
  • PC Software: SmartPSS

Interfaces:

• Video Output:
  • 1 × HDMI (Up to 4K output)
  • 1 × VGA (Up to 1920 × 1080)
• Audio Input/Output:
  • 1 × Audio Input (RCA)
  • 1 × Audio Output (RCA)
• USB Ports: 2 × USB 2.0 (for data transfer and backup)
• Alarm I/O: 4 × Alarm Inputs, 1 × Alarm Output

General:

• Power Supply:
  • 100-240V AC, 50/60 Hz
• Power Consumption:
  • Max. 20 W (without HDD)
• Dimensions:
  • 430 mm × 320 mm × 45 mm (16.9″ × 12.6″ × 1.8″)
• Weight:
  • Approx. 2.2 kg (4.8 lbs)

Environmental:

• Operating Temperature:
  • 0 °C to +40 °C (32 °F to 104 °F)
• Operating Humidity:
  • 10% to 90% (non-condensing)

Additional Features:

• Smart Features:
  • Motion detection
  • Video loss detection
  • Tampering alarm
• Firmware: Upgradable via USB or network