Dahua Technology X74A3L Ultra Series Pentabrid 16-Channel 4K HD-CVI DVR


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Dahua Technology X74A3L6 Ultra Series Penta-Brid 16-Channel 4K HD-CVI DVR

  • Record from and Manage up to 16 Cameras
  • Up to 8MP Recording Resolution
  • 6 TB HDD Preinstalled
  • HD-CVI/AHD/HD-TVI/SD + IP Inputs
  • H.265+/H.265/H.264+/H.264 Compression
  • Two-Way Audio
  • Up to 128 Simultaneous Users
  • BNC Interface
  • 2 x HDMI, VGA, and BNC Video Outputs
  • ONVIF Compliant


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Dahua X74A3L6 16 Channel HD-CVI PentaBrid 4K 1.5U Digital Video Recorder

Stream and record up to 16 video channels of video with the X74A3L6 Ultra Series PentaBrid HD-CVI DVR from Dahua Technology at resolutions of up to 8MP.

Equipped with four SATA ports, each supporting an HDD up to 10 TB, this X74A3L6 DVR can accommodate up to 40 TB of HDD storage (4 TB preinstalled).

The X74A3L6 recorder supports HD-CVI, AHD, HD-TVI, and SD analog cameras via its BNC interface.

Additionally, it has a 16-channel IP video input for IP cameras up to 12MP.

With the help of H.265+, H.265, H.264+, and H.264 compression, file sizes kept manageable while recording and playback quality maintained.

The X74A3L6 DVR’s interface includes BNC ports for two-way audio communication, as well as HDMI, VGA, and BNC connections for video output with support for dual streaming to maximize bandwidth efficiency.

The HDMI connection can output up to 4K UHD resolution video.

  • VGA output at up to 1920 × 1080 resolution
  • 4 TB HDD Preinstalled
  • HDMI output at up to 4K UHD resolution (3840 × 2160)
  • Records audio signals from HD-CVI cameras with built-in microphone via the BNC video input connection, easing installation
  • Volume control for live audio directly from on-screen menu
  • G.711 and PCM audio compression
  • 16 analog + 16 IP camera channels
  • Self-adaptive HD-CVI/AHD/HD-TVI/CVBS analog signal input
  • 8MP at 7 fps recording resolution on all HD-CVI channels
  • Supports IP cameras up to 12MP
  • Up to 128 Mb/s incoming bandwidth
  • Dual-stream video recording
  • Smart H.265+ and H.264 dual codec
  • 1 x USB 2.0 and 2 x USB 3.0 ports
  • Spot output channel for secondary monitor
  • Fish eye Dewar pings via web interface or Smart PSS
  • Point of Sale (POS) support
  • Smart fan design reduces fan noise and electrical consumption
  • Intelligent Video System (IVS) built-in video analytics allow monitoring for Tripwire detection, intrusion detection, and detection of abandoned or missing objects
  • Face detection functionality
  • Smart search
  • ONVIF Compliant

Data Sheet


Dahua X74A3L6 16 Channel HD-CVI PentaBrid 4K 1.5U Digital Video Recorder Data Sheet

Additional information

Weight16.31 lbs
Dimensions20.9 × 19.69 × 8.27 in
Hard Drive Slot 1

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