Dahua 4 Channel 1U Network Video Recorder

SKU: DET-42NVR3204


Hard Drive Size:

In Stock - Ships Today




  • 4 channel 1U standalone Network Video Recorder
  • Dual-core CPU presents the powerful preview, recording, playback and network performance
  • Up to 4 channel 1080P cameras realtime live view
  • H.264/MPEG-4 dual codec decoding
  • Up to 4 channel@D1, 2 channel@720P, 1 channel@1080P realtime recording
  • All channel simultaneous realtime playback, GRID interface & smart search
  • Support Multi-brand network cameras such as: Dahua, Arecont Vision, AXIS, Bosch, Brickcom, Canon, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Vivotek and ONVIF
  • Support remote network camera encoding setting & image adjust
  • IP Search feature to automatically discover network cameras
  • Support 2 SATA HDDs up to 6TB, 2 USB2.0
  • Built-in web server, CMS(DSS/PSS) & DMSS







Main Processor

High performance Dual-core embedded microprocessor

Operating System

Embedded LINUX

System Resources

Pentaplex function: live, recording, playback, backup & remote access

Control Mode

Front panel, USB mouse, IR remote control, Keyboard, Network


IP Camera Input

4 Channel @ D1 / 2 Channel @ 720P / 1 Channel @ 1080P

IP Camera Supported List

Dahua, Arecont Vision, AXIS, Bosch, Brickcom, Canon, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Vivotek, ONVIF


1 HDMI (Video & Audio), 1 VGA


Display Split



1920×1080, 1280×1024, 1280×720, 1024×768

Tour Display


Privacy Masking

4 self-defined four-sided zones for privacy masking for each camera


Camera title, time, video loss, camera lock, motion detection, recording


Video/Audio Compression

H.264 / MPEG4

Recording Resolution

1080P(1920×1080) / 720P(1280×720) / D1(704×480)

Max Recording Speed

120fps@D1 / 60fps@720P / 30fps@1080P

Recording Bit Rate

Up to 8Mbps

Recording Quality

CBR, VBR(1~6 level, level 6 is the best)

Recording Mode

Manual, Schedule(Regular(Continuous), MD(Video detection: Motion detection, Camera blank, Video loss), Alarm), Stop

Recording Priority


Recording Interval

1~120 min. (default: 60 min.)

Video Detection & Alarm

Trigger Events

Recording, PTZ movement, Tour, Alarm, Email, FTP, Buzzer & Screen Messages

Motion Detection

Zones: 396(22×18), Sensitivity: 1~6 (level 6 is highest)

Video Loss & Camera Blank


Alarm Input

4 Channel

Relay Output

3 Channel

Playback & Backup

Playback Channel


Search Mode

Time/Date, Alarm, MD & Exact search (accurate to second), Smart Search

Playback Functions

Play, Pause, Stop, Rewind, Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom(any size)

Backup Mode

Flash drive / USB HDD / USB CD&DVD-RW / Network download



RJ-45 Port (10/100M/1000M)

Network Functions

HTTP, TCP/IP, UPNP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search (Support Dahua IP Camera, DVR, NVS, etc.)

Max Remote Users

20 Users Simultaneously

Remote Operation

Monitor, PTZ control, Playback, System setting, File download, Log information

Hard Disk

Hard Disk

2 SATA ports, Max 3TB per HDD supported

Space Occupation

Max 3.6GB/H per Channel

HDD Management

HDD Group, HDD hibernation technology, HDD faulty alarm & RAID (Redundancy)

Auxiliary Interface

USB Interface

2 ports, 1 for mouse control, 1 for backup


Dahua Keyboard, PC Communication


PTZ control


Power Supply

DC 12V / 3.3A

Power Consumption

20W (Without HDD)

Working Environment

-10 ~+55°C / 10~90%RH / 86~106kpa


1U, 14.8"×11.2"×1.8"(W×D×H)



5.1 lbs (without HDD)

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