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4 Channel, Up to 4 Terabyte, HD-CVI, 720p, DVR System with 4 x 720p HD CMOS Cameras

Vonnics competitively priced 4 Channel HD-CVI DVR System with 4 High Definition cameras and up to 4 Terabytes of add in memory. 

Model Number DK4-CVI4404
System Main Processor

High-performance industrial embedded micro


OS Embedded LINUX
System Resources

Multiplex operations: Multiple-channel record,

multiple-channel playback and network operation


Interface User-friendly graphical user interface
Input Devices USB mouse
Input Method

Arabic number, English character, donation and

extension Chinese (optional)

Shortcut Function

Copy/paste operation, USB mouse right-key

shortcut menu, double click USB mouse to

switch screen.

Input 4 Channel, BNC
Compression Standard Video Compression H.264
Audio Compression G711A, G711U, PCM
Video monitor Video Input

4-CH composite video input: (NTSC/PAL) BNC

(1.0VBP- P, B75Ω)

Video Output

1-ch VGA output.
1-ch HDMI output.
Support VGA/HDMI video output at the same time.

Video Standard Support PAL/NTSC.
Record Speed

Real-time Mode: PAL 1f/s to 25f/s per channel and

NTSC 1f/s to 30f/s per channel

Video Partition 1/4 windows(Optional)
Monitor Touring

Support monitor tour functions such as motion detection,

and schedule auto control.

Resolution (PAL/NTSC) PAL/NTSC Real-time monitor: 720P 1280*720

All-ch: 720P 1280*720, 960H 960 ×576/960×480,

D1 704×576/704×480, HD1 352×576/352×480,

2CIF 704×288/704×240, CIF 352×288/ 352×240 ,

QCIF 176×144/176×120

Support dual streams: extra stream resolution

CIF 352×288/ 352×240, QCIF 176×144/176×120.

Image Quality 6-level image quality (Adjustable)
Privacy mask

Support one privacy mask of user-defined size

in full screen.
Support max 4 zones.

Image Information

Channel information, time information and privacy

mask zone.

TV Adjust Adjust TV output zone suitable to anamorphic video.
Channel Lock

Cover secret channel with black screen though

system is encoding normally.
Screen-lock function to prevent unauthorized

user seeing secret video.

Channel Information

Channel name, recording status, screen lock status,

video loss status and motion detection status are

shown on the bottom left of display screen.

Color Configuration

Hue, brightness, contrast, saturation and gain

setup for each channel.

Audio Audio Input 1-ch 200-2000mv 10KΩ(RCA)
Audio Output 1-ch audio output 200-3000mv 5KΩ(RCA)
Bidirectional Audio Reuse the audio input/output channel.
Hard disk Hard disk 1 built-in SATA port. Support 1 HDD.
One HDD Space 4TB (HDD not included)
Hard Disk Occupation Audio: PCM 28.8MByte/h
Video: 56-900MByte/h
Record and playback Recording Mode

Manual recording, motion detection recording,

schedule recording and alarm recording
Priority: Manual recording> alarm recording>

motion detection recording>schedule recording.

Storage Mode Support channel record quota setup
Recording Length

1 to 120 minutes single record duration

(Default setup is 60 minutes)

Playback Repeat Way

When hard disk is full, system can overwrite

previous video file.

Record Search

Various search engines such as time, type

and channel.

Playback Mode

Various fast play, slow play speeds,

manual frame by frame playback and

reverse play mode.

Various File Switch Ways

Can switch to previous or next file or any

file in current play list.
Can switch to file on other channel of the

same time. (If there is a file)
Support file continuous play, when a file is

end system auto plays the next file in the current channel

Playback Way Support mark playback
Multi-channel Playback There is 1/4-channel playback mode.
Window Zoom

Switch between self-adaptive screen/full

screen when playback

Partial Enlargement

When in one-window full-screen playback mode,

you can select any zone to activate partial

enlargement function.

Backup function Backup Mode HDD backup

Support peripheral USB backup device.

(Flash disk, portable disk and etc.)

Support network download and save
Network control Network control View monitor channel remotely.

DVR configuration through client-end and

web browser

Upgrade via client or browser to realize

remote maintenance.

View alarm information such as motion detection

and video loss via client.

Support network PTZ lens control
File download backup and playback

Multiple devices share information via

corresponding software such as professional

surveillance software (PSS)

Duplex transparent COM
Network alarm input and output
Zero-channel encoding.
Bidirectional audio.
Motion Detection and Alarm Motion Detection

Zone setup: support 396

((PAL 22×18, NTSC 22×15)) detection zones.
Various sensitivity levels.
Alarm can activate record or external alarm

or screen message prompt.

Video Loss Alarm can activate screen message prompt.
External Alarm N/A
Manual Alarm Control N/A
Alarm Input N/A
Alarm Output N/A
Alarm Relay N/A
Interface USB Interface 2 USB 2.0 port.
Network connection RJ45 10M/100M self-adaptable Ethernet port
RS485 PTZ control port
Support various PTZ control protocols.
RS232 N/A
System Information Hard Disk Information Display HDD current status
Data Stream Statistics

Data stream statistics for each channel

(in wave mode)

Log statistics

Backup to 1024 log files.
Support various search engines such as

time and type.


Display version information: channel amount,

system version and release date.

On-line user Display current on-line user
User Management User Management

Multi-lever user management; various

management modes
Integrated management for local user,

serial port user and network user.
Configurable user power.

Password Authentication Password modification
Administrator can modify other user’s password.

Account lock strategy
Five times login failure in thirty minutes may

result in account lock.

Upgrade Web browser, client-end and update tool.
Login, Logout and Shutdown

Password login protection to guarantee safety
User-friendly interface when login. Provide

the following options: Logout /shutdown/ restart.
Right authentication when shut down to

make sure only those proper people

can turn off DVR

General Parameter Power DC 12V
Power Consumption ≤15W (With adapter, exclude HDD)
Working Temperature -10 °C -+55°C
Working Humidity 10%-90%
Air Pressure 86kpa-106kpa
Product Dimension Mini 1U: 12.80 × 9.65 × 1.77 in
Product Weight 1.75 lb (without HDD)
Packet Dimension 14.50 x 4.60 x 12.00 in
Packet Weight 1.90 lb (without HDD)
Installation Mode Desktop installation
Image Sensor 1/3” CMOS Sensor
Lens 3.6mm 2 Mega Pixel Lens
Horizontal Resolution 720p
Effective Pixels 1280 (H) x 960 (V)
Min. Illumination 0.0 Lux with IR on
IR Distance 75ft
Video System NTSC
Video Output 1.0 Vp-p, 75Ω
Electronic Shutter Auto
White Balance Auto
BLC Auto
Operating Temperature -10°C~+50°C (14°F~122°F)
Storage Temperature -20°C~+60°C (-4°F~140°F)
Chasis Material Aluminum
Weather Proof IP66
Vandal Resistant Yes
Supply Voltage DC 12V
Power Consumption 2A (camera pack included power adapter)
Bracket/ Mount Ceiling Mount 
Product Dimension 8.00 x 4.00 x 2.75 in
Product Weight 0.40 lb
Package Dimension 9.25 x 4.50 x 3.80 in
Package Weight 0.52 lb
Package Contents
DVR Accessories

Remote Control with Battery, Network Cable,

DVR Power Adapter, CD Software 


1/3” CMOS Sensor HDCVI Outdoor Night

Vision Bullet Camera x 4

Camera Accessories

Screw Pack x 4, 60ft Siamese Pre-made

Cable x 4, Camera 2A Power Adapter,

Camera Power Splitter Cable 

Package Dimension  15.63 x 8.60 x 13.25 in
Package Weight 9.05 lb


  • $ 23999
  • Save $ 5988

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