Dahua Technology Lite Series X51A1E 4-Channel 1080p HD-CVI Pentabrid DVR with 2TB HDD


Brand :Dahua


Condition :New

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Dahua Technology X51A1E Overview

The Lite Series X51A1E 4-Channel 1080p HD-CVI Pentabrid DVR with 2TB HDD from Dahua Technology allows users to record from up to four analog cameras via HD-CVI, HD-TVI, AHD, or CVBS inputs, and up to two IP camera inputs. This DVR records analog video at up to 1080p resolution, or 6MP resolution per IP channel. A 2TB HDD storage is preinstalled. Storage is expandable to 10TB in the event that more space is required.

This DVR has an RJ45 network interface and supports up to 128 users. It is compatible with iOS and Android. HDMI and VGA video outputs enable users to view footage on a monitor (available separately). ONVIF 16.12 compliance enables interoperability with other surveillance products.

Key Features

  • Pentabrid technology enables simultaneous recording from HD-CVI, AHD, HD-TVI, CVBS, and IP sources
  • Embedded processor and Linux OS
  • Plug-and-play operation
  • 4 HD-CVI/AHD/HD-TVI/CVBS BNC auto-detect camera inputs
  • Smart H.265+, H.265, Smart H.264+, and H.264 video compression
  • Configurable recording options and schedules that save HDD space and active monitoring time
  • Up to 6MP camera recording per IP channel
  • 24 Mb/s maximum incoming bandwidth
  • HDMI and VGA video outputs
  • 100M RJ45 port
  • 2 USB 2.0 ports
  • RS-485 port for PTZ control
  • 8 alarm inputs and 3 alarm outputs
  • 4 RCA audio inputs and 1 RCA audio output
  • Built-in smart search
  • Smart fan design turns fan on or off based on the CPU temperature, conserving electricity & reducing fan noise
  • Compatible with iOS and Android
  • ONVIF 16.12 compliant

Intelligent Analytics (IVS)

  • Tripwire
  • Intrusion
  • Abandoned/missing object
  • Facial detection available on the first analog channel
  • Channels 1 and 2 support all premium IVS features
  • Channels 3 and 4 support tripwire and intrusion premium IVS features
  • IVS features are operational only when additional IP channels are inactive

Dahua Technology X51A1E Specs


SignalAHD, Analog, HD-CVI, HD-TVI, IP
Playback Resolution1280 x 1024 
1280 x 1440 at 30 fps 
1296 x 1944 at 20 fps 
5 MP at 30 fps 
4 MP at 30 fps 
1920 x 1080 at 30 fps 
1280 x 720 at 30 fps 
704 x 480 (NTSC) 
5 MP at 30 fps 
4 MP at 30 fps 
1920 x 1080 at 30 fps 
1280 x 720 at 60 fps 
5 MP at 30 fps 
4 MP at 30 fps 
1920 x 1080 at 30 fps 
1024 x 720 at 30 fps 
3840 x 2160 
1920 x 1080 
Recording Resolution1296 x 1944 at 10 fps
1280 x 1440 at 15 fps
1920 x 1080 at 15 fps
960 x 1080 at 30 fps
1280 x 720 at 30 fps
960H at 30 fps
D1 at 30 fps
CIF at 30 fps
D1 at 15 fps
CIF at 15 fps
PTZ SupportYes
Playback Speeds1x, 4x
Bit Rate32 kb/s to 6.1 Mb/s (Each Channel)
64 kb/s (Each Channel, Audio)
IP Camera Support4 (6 Expansion)
Decoding Resolution4 Channels:
1920 x 1080 at 7 fps 
1280 x 720 at 15 fps 
960H at 30 fps 
2-Way AudioYes
Max Sample Rate/Resolution8 kHz / 16-Bit


A/V Ports1 x HDMI
1 x RCA Audio Output
1 x VGA
4 x RCA Audio Input
AHD, Analog, CVBS, HD-CVI, HD-TVI: 4 x BNC Video Input
Communication Ports1 x RJ45 Fast Ethernet
1 x RS-485
2 x USB Type-A USB 2.0
Audio Connections8 Inputs
3 Outputs
Drive Interfaces1 x SATA
Maximum User Access128
Network Bandwidth24 Mb/s


Supported Video CodecsH.264, H.264+, H.265, H.265+
Supported Audio CodecsAAC, G.711A, G.711U, PCM
Backup MethodNetwork, USB Drive


Installed Drive2 TB Hard Drive
Max Capacity Supported10 TB
Operating System SupportAndroid, Linux, iOS
Recording Intervals1 to 60 Minutes
1 to 30 Seconds (Pre-Record)
10 to 300 Seconds (Post-Record)
Recording ModesAlarm, Continuous, Manual, Motion, Schedule, Stop
Search ModesAlarm, Date/Time, Motion, Search
Multi-Screen Configuration1, 4 (IP Extension Disabled)
1, 4, 6 (IP Extension Enabled)


Event TriggerBuzzer, Email, FTP, PTZ, Recording, Screen Tips, Snapshot, Tour, Video Push
Number of Motion Detection Zones396 (22 x 18)


Power Consumption12 VDC at 2 A (24 W)
Without HDD: 10 VDC


Operating Temperature14 to 131°F / -10 to 55°C
Operating Humidity10 to 90%
Storage Temperature-4 to 158°F / -20 to 70°C
Storage Humidity0 to 90%


CertificationsFCC, UL, as per Manufacturer
Rack Form Factor1 RU
Dimensions (W x D x H)12.8 x 10.0 x 2.2″ / 325.0 x 255.0 x 55.0 mm
Weight2.4 lb / 1.1 kg (Without HDD)