Dahua DHI-NVR4232-16P-4KS3 32-Channel 16-Port PoE 4K NVR

Dahua NVR4232-16P-4KS3

The Dahua 32-Channel NVR delivers centralized recording for medium to large IP surveillance networks. This 1U Lite recorder accepts up to 32 camera streams at resolutions up to 12MP. Sixteen built-in PoE ports supply power and data to compatible IP cameras over a single cable run. Embedded Linux firmware provides stable operation without a separate server OS. Dual SATA bays support drives up to 20 TB each for extended retention. HDMI and VGA outputs let operators monitor live and recorded video on separate displays. Two USB ports support mouse control, backup, and firmware updates. Motion detection triggers recording schedules and event alerts across connected channels.

The compact 1U chassis fits standard 19-inch racks and wall-mount brackets. Gigabit networking handles high-bitrate 4K streams from multiple cameras simultaneously. IT teams deploy this unit as the recording hub for retail, warehouse, education, and office sites that need PoE-powered cameras without external switches. Channel licensing covers the full 32 inputs so expansion does not require additional decoder cards. Recording schedules support continuous, motion-triggered, and alarm-linked modes per channel. Remote clients access live and playback streams through Dahua management software on the LAN or VPN. Storage management tools report disk health, free space, and overwrite policies. The recorder accepts ONVIF-compatible cameras alongside native Dahua devices for mixed-vendor deployments. Rack ears and ventilation follow 1U thermal guidelines for always-on operation in telecom closets and server rooms.

Key Features

• 32-Channel Recording Capacity
  Records up to 32 IP camera streams on one appliance for consolidated site management.

• Integrated 16-Port PoE Switching

  • Delivers power and network connectivity to PoE cameras on ports 1 through 16
  • Reduces cabling and eliminates separate PoE injectors for supported cameras
  • Remaining channels connect through external switches on the Gigabit uplink

• 4K and 12MP Decode Support
  Handles high-resolution streams from modern Dahua and ONVIF-compatible cameras.

• Dual SATA Storage Architecture

  • Two internal SATA interfaces accept surveillance-grade HDDs up to 20 TB
  • Supports continuous write workloads typical of 24/7 recording environments
  • Disk groups can mirror or span depending on site retention policy

• Dual Video Output Interfaces
  HDMI and VGA connectors drive operator monitors and spot displays independently.

• Motion-Based Event Recording
  Configurable motion zones reduce storage use while preserving incident footage.

• Embedded Linux Platform
  Dedicated firmware stack avoids Windows patching cycles on critical security infrastructure.

Specifications

What’s in the Box

• DHI-NVR4232-16P-4KS3 network video recorder

• Power cord

• Quick start guide

• Rack mounting hardware

Why Choose NVR4232-16P-4KS3

• Consolidates 32 camera licenses and 16 PoE ports in one 1U appliance to simplify rack layout.

• Supports 12MP streams so upgrades to higher-resolution cameras do not require recorder replacement.

• Dual SATA bays with 20 TB headroom per drive meet long retention policies for compliance sites.

• Embedded Linux reduces attack surface compared with Windows-based recording servers.

• Separate HDMI and VGA outputs allow live view on a workstation monitor and a public spot display.

• Built-in PoE removes injector clutter and shortens installation time on greenfield camera runs.