Out of Stock




Dahua Technology X72A3A Pro Series PentaBrid 16-Channel 8MP HD-CVI DVR up to 20 TB of HDD storage

  • 4K at 7 fps Recording Resolution on All HD CVI Channels
  • Dual-stream Video Recording
  • Smart H.265+ and H.264 Dual Codec
  • Auto-detection and Auto-configuration of Video Inputs
  • 16 + 16 IP Camera Channels, each channel up to 8 MP
  • Maximum 128 Mbps Incoming Bandwidth
  • Smart Search and Intelligent Video System
  • Face detection functionality
  • Spot Output
  • Five-year Warranty

Out of stock



Dahua Technology X72A3A 4K Penta-Brid HD CVI DVR 16-Channel 1U Digital Video Recorder with IoT Support

Stream and record up to 16 video channels with the X72A3A Pro Series Penta-Brid HD-CVI DVR from Dahua Technology at resolutions up to 8MP. Equipped with two SATA ports, each supporting an HDD up to 10 TB, this DVR can accommodate up to 20 TB of HDD storage. The 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 network cameras up to 8MP. 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 DVR’s interface includes RCA ports for two-way audio communication, as well as HDMI and VGA 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
  • HDMI output at up to 4K UHD resolution (3840 × 2160)
  • Self-adaptive HD-CVI/AHD/TVI/CVBS signal input
  • 16 analog + 16 IP camera channels, each channel up to 8MP
  • Up to 128 Mb/s incoming bandwidth
  • Smart H.265+ and H.264 dual codec
  • 1 x USB 3.0 and 1 x USB 2.0 ports
  • Integrates with HD-CVI Internet of Things (IoT) devices to support multidimensional surveillance
  • Spot output channel for a secondary monitor
  • Point of Sale (POS) support
  • Smart fan design reduces fan noise and electrical consumption
  • Intelligent Video System (IVS) built-in video analytics including intrusion detection, and detection of abandoned or missing objects
  • Face detection functionality
  • Smart search



Dahua Technology X72A3A Pro Series PentaBrid 16-Channel 8MP HD-CVI DVR with up to 20 TB of HDD storage Data sheet

Operation Manual


Dahua Technology X72A3A Pro Series PentaBrid 16-Channel 8MP HD-CVI DVR with up to 20 TB of HDD storage Operation Manual

Quick Start Guide


Dahua Technology X72A3A Pro Series PentaBrid 16-Channel 8MP HD-CVI DVR with up to 20 TB of HDD storage Quick Start Guide

Additional information

Weight 8 lbs


Dahua Technology X72A3A


Main Processor Embedded processor
Operating System Embedded Linux


Analog Camera Inputs 16 x BNC
HD-CVI 8 MP, 6 MP, 4 MP, 1080p at 30 fps, 720p at 60/30 fps
AHD 5 MP, 4 MP, 3 MP, 1080p/720p at 30 fps
HD-TVI 5 MP, 4 MP, 3 MP, 1080p/720p at 30 fps
IP Camera Input 16 + 16 channels, each channel up to 8 MP
Audio Input: 4 x RCA
Output: 1 x RCA
Two-Way Talk Reuse audio in/out, RCA


Compression Smart H.265+, H.265, Smart H.264+, and H.264
Recording Resolution 8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 4 M-N (1280 × 1440), 1080p, 720p, 960H, D1, and CIF
Recording Rate Main Stream: 8 MP at 7 fps; 6 MP at 10 fps; 5 MP at 12 fps; 4 MP or 3 MP at 15 fps; 4 M-N, 1080p, 720p, 960H, D1, CIF, or QCIF at 30 fps

Sub Stream: 960H at 15 fps; D1 or CIF at 30 fps

Maximum Incoming Bandwidth 128 Mb/s
Bit Rate 32 to 6144 KB/s per channel
Recording Modes Manual, Schedule (Regular, Continuous), MD (Video detection: Motion Detection, Video Loss, Tampering), Alarm, and Stop
Recording Intervals 1 to 60 minutes (default 60 minutes)
Pre-Record: 1 to 30 sec
Post-Record: 10 to 300 sec
Audio Compression AAC (first channel only), G.711A, G.711U, and PCM
Audio Sample Rate 8 kHz, 16 bits per channel
Audio Bit Rate 64 KB/s per channel


Interface 1 x HDMI (3840 × 2160)
1 x VGA (1920 × 1080)
Spot Output HDMI or VGA, configurable
Output Resolutions HDMI: 3840 × 2160, 2560 × 1440, 1920 × 1080, 1280 × 1024, 1280 × 720, and 1024 × 768

VGA: 1920 × 1080, 1280 × 1024, and 1280 × 720

Maximum Decoding 8 channels of 4K at 7 fps
8 channels of 6 MP at 10 fps
8 channels of 5 MP at 12 fps
16 channels of 4 MP or 3 MP at 7 fps
16 channels of 4 M-N or 1080p at 15 fps
16 channels of 720p or 960H at 30 fps
Multi-Screen Display IP Extension Mode Disabled: 1/4/8/9/16
IP Extension Mode Enabled: 1/4/8/9/16/25
On-Screen Display Camera title, time, video loss, camera lock, motion detection, and recording


Interface 1 x RJ45 port, 1000 Mb/s
Network Function HTTP, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPoE, DDNS, FTP, alarm server, P2P, IP search (supports Dahua IP cameras, DVRs, and NVRs)
Max. User Access. 128 users
Compatible Mobile Operating Systems iOS and Android
Interoperability ONVIF 16.12, CGI conformant

Video Detection & Alarm

Trigger Events Recording, PTZ, Tour, video push, email, FTP, Snapshot, buzzer, and screen tips
Video Detection Motion detection, video loss, tampering, and diagnosis MD Zones: 396 (22 × 18)
Alarm Input 16 channels
Relay Output 3 channels
Playback & Backup
Playback 1/4/9/16
Search Modes Time/date, alarm, motion detection, and exact search Accurate to 1 second
Playback Functions Play, pause, stop, rewind, fast play, slow play, next file, previous file, next camera, previous camera, full screen, repeat, shuffle, backup selection, and digital zoom
Backup Modes USB device and network


Internal HDD 2 x SATA ports, up to 10 TB capacity for each disk 4 TB preinstalled

Auxiliary Interface

USB 1 x USB 2.0 port
1 x USB 3.0 port
Serial 1 x RS-485 port for PTZ control


Power Supply 12 VDC, 5 A
Power Consumption <20 W, without HDDs


Operating Conditions 14 °F (-10 °C) to 131 °F (55 °C) 10 to 90% RH
Storage Conditions -4 °F (-15.56 °C) to 158 °F (ca. 70 °C)  0 to 90% RH


Installation Desktop or rack mount
Rack Height 1 RU
Dimensions 14.8” × 11.3” × 2.1” / 37.5 × 28.7 × 5.3 cm
Weight 3.97 lb (1.8 kg)

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