Original Dahua NVR4218-8P-4KS2 H.265 NVR with 1SATA 8POE ports with 8pcs 4MP Poe varifocal motorized lens 2.8mm ~12mm camera kit

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Original Dahua NVR4108-8P-4KS2 H.265 NVR with 1SATA 8POE ports with 8pcs 4MP Poe varifocal motorized lens 2.8mm ~12mm camera kit


Mutil-language support!


> H.265/H.264 codec decoding
> Max 80Mbps Incoming Bandwidth
> Up to 8MP Resolution for Preview and Playback
> HDMI/VGA simultaneous video output
> Support IPC UPnP, 8PoE ports
> Support ANR technology to enhance the storage reliability when the network break down



Main Processor

Quad-core embedded processor

Operating System

Embedded LINUX





3840×2160, 1920×1080, 1280×1024, 1280×720, 1024×768

Multi-screen Display

8CH: 1/4/8/9

16CH: 1/4/8/9/16


Camera title, Time, Video loss, Camera lock, Motion detection, Recording

Video Detection and Alarm

Trigger Events

Recording, PTZ, Tour, Video Push, Email, FTP, Snapshot, Buzzer and Screen Tips

Video Detection

Motion Detection, MD Zones: 396 (22 × 18),

Video Loss and Tampering

Alarm input


Relay Output


Playback and Backup


8CH: 1/4/8

16CH: 1/4/8/16

Search Mode

Time /Date, MD and Exact Search

(accurate to second), Smart search

Playback Function

Play, Pause, Stop, Rewind, Fast play, Slow Play,

Next File, Previous File, Next Camera,

Previous Camera, Full Screen, Repeat, Shuffle, Backup Selection, Digital Zoom

Backup Mode

USB Device/Network


Internal HDD

1 SATA III Port, Up to 6 TB capacity for each HDD

HDD Mode




Auxiliary Interface


2 USB Ports (2 USB2.0)





Third-party Support

Third-party Support

Dahua, Arecont Vision, AXIS, Bosch, Brickcom,

Canon, CP Plus, Dynacolor, Honeywell, Panasonic,

Pelco, Samsung, Sanyo, Sony, Videotec, and more

Audio and Video

IP Camera Input

8/16 Channel

Two-way Talk

1 Channel Input, 1 Channel Output, RCA





8Mp/ 6Mp/ 5MP/ 4MP/ 3MP/ 1080P/ 1.3MP/ 720P etc.

Record Rate


Bit Rate

16Kbps ~ 20Mbps Per Channel

Record Mode

Manual, Schedule (Regular, Continuous), MD (Video detection: Motion Detection, Tampering, Video Loss), Stop

Record Interval

1 ~ 120 min (default: 60 min), Pre-record:

1 ~ 30 sec, Post-record: 10 ~ 300 sec



1 RJ-45 Port (10/100Mbps)

Ethernet Port

1 Independent 100Mbps Ethernet Port


8 ports (IEEE802.3at/af) (4Mbps is recommended per channel)

Network Function


IP Search (Support Dahua IP camera, DVR, NVS, etc.), Easy4ip

Max. User Access

128 users

Smart Phone

iPhone, iPad, Android


ONVIF 2.4, CGI Conformant


Power Supply


Power Consumption

NVR: <8.3W (Without HDD)

PoE: Max 25.5w for single port, 80w in total


Operating Conditions

-10°C ~ +55°C (+14°F ~ +131°F), 86 ~ 106kpa

Storage Conditions

-20°C ~ +70°C (-4°F ~ +158°F), 0 ~ 90% RH



Smart 1U, 270mm×204.7mm×45.7mm

(10.6″ x 8.1″ x 1.8″)

Net Weight

0.65kg (1.43 lb) (without HDD)

Gross Weight

1.8kg(3.97 lb)(without HDD)



EN55032, EN55024, EN50130-4, EN60950-1


Part 15 Subpart B, ANSI C63.4-2014


UL60950-1+CAN/CSA C22.2 No.60950-1

Product features
The use of ultra low light 4 Mega pixels (2592*1520) CMOS image sensor, low light effect, high image clarity
Can output 3 million 30fps (2304×1296), high resolution real-time or high frame rate image output
Support H.264, High profile H.265, Main profile H.264, Baseline H.264, MJPEG a variety of encoding formats, can be three streams at the same time output, flexible use of a variety of scenarios
Region of interest (ROI) coding, to ensure that the image quality, saving storage space
Support scalable video coding (SVC) technology, according to the network environment, adaptive transmission rate
Support mobile phone monitoring
Support corridor mode, the application is more flexible
Support wide dynamic, 3D noise reduction, strong light suppression, backlight compensation, suitable for different monitoring environment
The anti light high performance infrared light, to achieve 24 hours all-weather monitoring
Support POE power (802.3af) /DC12V + 25% wide pressure power supply, strong resistance to power fluctuations
Support is disconnected from the network, IP conflict, motion detection, video occlusions, mix line invasion, regional invasion, scene change, remaining items / disappear, face detection, hovering detection, gathering, fast moving, vehicle detection intelligent alarm
Conforms to the IP67 dust and waterproof international standard, meets the IK10 riot standard
Support three axis adjustment function, realize no dead angle monitoring, convenient construction and installation
With SD card slot ,SD card function, SD card Max support 128G
2.8 mm ~ 12 mm Electric Zoom Lens

Parameter classification Parameter name parameter values
model DH-IPC-HDBW4431R-ZS
system parameter Main processor manufacturers and models Ultra high performance processor
video camera Sensor type 1/3 “4Megapixel progressive scan CMOS Aptina company
Sensor effective pixels 2592*1520
Adjustment angle Level: 0 ° ~355 °; vertical: 0 ° ~75 °; image flip 0 ° ~355 °
Electronic shutter 1/3s~1/100000s; can be manual or automatic adjustment
Minimum illumination 0 01LuxF1.2 (color); 0.001LuxF1.2 (black and white); 0Lux (infrared light open)
Maximum infrared distance 50 meters
Day and night conversion IR-CUT automatic switching
Scanning mode progressive scanning
noise reduction 3D noise reduction
Wide dynamic support
Signal to noise ratio > 50dB
gain control Manual / automatic
white balance Manual / automatic
Backlight compensation Support, optional area
Strong light suppression support
Lens parameter focal length 2.8 mm ~ 12 mm Electric Zoom Lens
Lens interface M12
Lens aperture F2.0/F2.0/F2.0
RIS Mode fixed
Zoom type Fixed focus
Angle of view H: 92 ° ~28 °
Minimum focusing distance 0.75m/1.1m/2.4m
Audio parameter Audio input None
Audio output None
Audio compression standard G.711a; G.711Mu; AAC
kbps 8Kbps/16Kbps
Video parameters Video compression standard H.265; H.264; H.264H; H.264B; MJPEG
KBps 8Kbps~32Mbps
Video frame rate 50Hz:
2560×1440 25fps+D125fps+720P1fps
2560×1440 25fps+D130fps+720p1fps
Default default code stream 4096kbps (3.5MP)
Alarm parameters Alarm input None
Alarm output None
action with alarm Support no SD card; SD card space shortage; SD card error; network disconnection; IP collision; mobile detection; video occlusion; regional invasion; mix line intrusion; item legacy / disappear; scene change; audio anomaly detection; face detection
function Image setting Brightness; contrast; sharpness; saturation; GMMA
OSD information stack Time; channel; geographic location; picture;
Image mirroring support
heartbeat mechanism support
Video mode Manual video; video recording; video recording; video recording
Video priority from high to low in turn is manual / external alarm / video detection / timing
Storage function Support network storage; Micro SD card storage, maximum capacity 128GB
Maximum number of users 20
Restore default Support a key to restore the default
browser Support IE7; IE8; IE9; IE10; Chrome8+; Firefox3.5+; Safari5+ browser
user management Maximum support 20 users, multi-level user rights management
safe mode Authorized user name and password; MAC address binding; HTTPS encryption; 802.1x IEEE; network access control
Ultra low stream 1080p:2~4Mbps; 720P:1~2Mbps
Intelligent analysis Support scene change; regional invasion; mix line invasion; article left / disappear; face detection and can be linked with the alarm; support a variety of trigger rules linkage action
Face detection support
Through the fog support
Privacy masking 4 block area
Corridor mode Support 90 degrees and 270 degrees two modes
Network and interface network interface 1, 10/100M Ethernet port
Network protocol HTTP; TCP; ARP; RTSP; RTP; UDP; FTP; DHCP; DNS; DDNS; PPPOE; IPv4/v6; SNMP; QoS; UPnP; NTP;; SMTP;;;;;;;;;
Access standard ONVIF; CGI; PSIA
Conventional parameter power supply DC12V (+ 25%) /POE
power waste The maximum 6.3W (IR, ICR)
working temperature -40 C ~+60 C
Working humidity Less than or equal to 95%
Protection level IK10; IP67
Shell material Die casting aluminum
size With 122mm * 89mm
weight Net weight 750g, with package weight 800g
Installation method Wall mounted; top loading; lifting

Bottom view (after remove the cover):

Side view:

Mounting side view:

In the kit:

Camera image at artificial illumination (about 30Lux):

Camera image at night conditions with internal built-in IR illuminator on:

Camera image at direct strong light opposite to camera:

Record from camera during daylight operation:




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1.We are professional DAHUA products reseller who offers 100% original products manufactured by DAHUA, but we will only offer some unbranded products(without DAHUA brand on the product) from 2015;some style will havebot dahua logo,please understand!

2. Please take note that our inventory is changing every day, so we cannot make sure what you order has stock. If you need the order urgently , please contact us before you pay. all dahua products we can send you in 15- 25days normally if we havenot stock ,If you cannot wait, please don’t place order;

3.All DAHUA products are with English version only. If you need to buy any other model which is not displayed in our shop, please contact with us;

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5.For payment, we also accept T/T and Western Union. If you pay by T/T or Western Union, we will offer you 5% discount. Our online shop is mainly for retail and we will require you to pay by T/T or Western Union for order up to certain quantity;

6.For shipping, we set EMS by default but other shipping methods like DHL, UPS, FEDEX etc. are also available. You can just pay for the EMS shipping. We will evaluate which express is the best for your country and then use the best one if the cost you have paid is enough or similar. Or if you like any express company, please contact with us before you pay. The shipping cost charged by the system is not correct normally when you order different items together, so please remember to ask us to check the exact cost and revise price for you before you order;

7.For product warranty, we provide 2-year warranty period(since the date you receive the order). Shipping cost of returning the defective product will be borne by the buyer after 1 years later

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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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