4 PoE (+2) channel video recorder NVR301-04S3-P4 Uniview

More detailed technical description on the manufacturer's website: Uniview

The Uniview NVR301-04S3-P4 is a video surveillance device that provides high-quality video and audio recordings.
It is suitable for small to medium-sized surveillance systems with 1 to 4 or 6 IP cameras. A recorder can be connected to 6 cameras by disabling certain functions.
In addition to ensuring basic continuous and motion-triggered video recording, the device also offers several additional features.

Here is a detailed description of its main features:

• Video/Audio Inputs:
  • 1x WAN (IP):
  • 4x LAN (IP) channels with PoE power supply + 2 additional IP channels without PoE when video analytics is turned off
  • audio input is provided only in conjunction with the video signal from the camera
    
    
• Network Parameters:
  • Incoming Data Bandwidth: 64 Mbps
  • Outgoing Data Bandwidth: 48 Mbps
  • Remote Users: up to 128
  • Protocols: TCP/IP, P2P, UPnP, NTP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, SMTP, RTSP
    
    
• Video/Audio Outputs:
  • HDMI/VGA Output: 3840x2160/30Hz, 1920x1080/60Hz
    
  • Recording Resolution: 4K/5MP/4MP/3MP/1080p/960p/720p/D1/2CIF/CIF
  • Audio Output: 1 channel, 3.5mm (RCA)
  • Audio Compression: G.711A, G.711U

• Playback:
  • Synchronous Playback: up to 4 channels
• Hard Disk:
  • SATA: 1 SATA interface
  • Capacity: Up to 8TB for each disk
    
    
• Video Content Analysis (VCA) features:
• Intrusion Detection:
• This feature allows defining specific zones in the image, and if a person enters these zones, the system reacts and performs predefined actions - recording, sound signal, alarm, "push notification" to the mobile phone, etc.
  
• Defined Line Crossing:
• Detects the passage of an object over a predefined line set in the settings.
  
• Entrance/Exit in Defined Zone:
• This function determines whether an object enters or exits a predefined zone.
  
• Audio Detection:
• Identifies and responds to audio signals.
• Ultra Motion Detection (UMD):
• UMD uses intelligent algorithms to precisely identify and classify movement on the screen. This feature helps determine whether the movement is a person, a vehicle, or another type of object. It reduces false alarms that may arise from natural movements, such as tree branches or animals, and provides more accurate motion analysis.

• External System Connections:
  • Network Interface: 1 RJ45 10M/100M
  • USB Interface: 2 x USB2.0
    
    
• Power Supply:
  • Power: 12V DC (included)
  • Power Consumption: ≤5 W (without HDD)
    
    
• Operating Illumination:
  • Operating Temperature: -10°C to +55°C
  • Operating Humidity Level: ≤ 90% RH (without condensation)