SKU: 40444972876

DAHUA NVR2104-W-4KS2 4 Channel Smart 1U Lite 4K H.265 Wireless Network Video Recorder

$146.70 $163.00
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

DAHUA NVR2104-W-4KS2 4 Channel Smart 1U Lite 4K H.265 Wireless Network Video RecorderNVR2104 W 4KS2 4 Channel Smart 1U Lite 4K H. 265 Wireless Network Video Recorder > Support IEEE802. 11b g n(2. 4GHz) > Support two antenna to strenthen the Wi Fi signal > H. 265+ H. 264+ codec decoding > Max 80Mbps wire incoming bandwidth > Max 24Mbps wireless incoming bandwidth > Up to 1ch@8MP 4ch@1080P decoding Product Data System Main Processor Dual core embedded processor Operating System Embedded LINUX Audio and Video IP Camera Input 4 8 Channel

NVR2104-W-4KS2 

4 Channel Smart 1U Lite 4K H.265 Wireless Network Video Recorder

> Support IEEE802.11b/g/n(2.4GHz)
> Support two-antenna to strenthen the Wi-Fi signal
> H.265+/H.264+ codec decoding
> Max 80Mbps wire incoming bandwidth
> Max 24Mbps wireless incoming bandwidth
> Up to 1ch@8MP/4ch@1080P decoding



Product Data


System

Main Processor

Dual-core embedded processor

Operating System

Embedded LINUX

Audio and Video

IP Camera Input

4/8 Channel

Two-way Talk

N/A

Display

Interface

1 HDMI, 1 VGA

Resolution

HDMI: 3840×2160, 1920×1080, 1280×1024, 1280×720

VGA: 1920×1080, 1280×1024, 1280×720

Decoding Capacity

1ch@8MP 30fps, 4ch@1080P 30fps

Multi-screen Display

4CH: 1/4

8CH: 1/4/8/9

OSD

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

Recording

Compression

H.265+/H.264+/H.265/H.264

Resolution

8MP/6MP/5MP/4MP/3MP/1080P/720P/D1&etc.

Record Rate

80Mbps

Bit Rate

16Kbps ~ 20Mbps Per Channel

Record Mode

Manual, Schedule(Regular(Continuous), MD, Stop

Record Interval

1~120 min (default: 60 min), Pre-record: 1~30 sec, Post-record: 10~300 sec

Video Detection and Alarm

Trigger Events

Recording, PTZ, Tour, Video Push, Snapshot, and Screen Tips

Video Detection

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

and Tampering

Alarm input

N/A

Relay Output

N/A

Playback and Backup

Sync Playback

1/4

Search Mode

Time /Date, MD and Exact Search

(accurate to second)

Playback Function

Play, Pause, Stop, Rewind, Fast play, Slow Play, Next File, Previous File, Next Camera, Previous Camera, Full Screen, Shuffle, Backup Selection, Digital Zoom

Backup Mode

USB Device/Network

Third-party Support

Third-party Support

Arecont Vision, AXIS, Bosch, Brickcom, Canon, CP Plus, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Videotec, and more

Network

Interface

1 RJ-45 port (10/100Mbps)

Wireless

IEEE802.11b/g/n(2.4GHz)

PoE

N/A

Network Function

HTTP/HTTPS, TCP/IP, IPv4/IPv6, RTSP, UDP, NTP, DHCP, DNS, IP Filter, DDNS, IP Search(Support IP camera, DVR, NVS and etc.), P2P

Optical Fiber Interface

N/A

Max. User Access

128 users

Smart Phone

iPhone, iPad, Android

Interoperability

ONVIF 2.4, SDK, CGI

Storage

Internal HDD

1 SATA III Port, up to 4TB capacity for each HDD

HDD Mode

Single

eSATA

N/A

Auxiliary Interface

USB

2 ports (2 USB2.0)

RS232

N/A

RS485

N/A

Electrical

Power Supply

Single, DC12V/2A

Power Consumption

<6.6W (without HDD)

Environmental

Operating Conditions

0°C ~ +40°C (+32°F ~ +104°F), 86 ~ 106kpa

Storage Conditions

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

Construction

Dimensions(W×D×H)

Smart 1U, 226mm×226.9mm×40.4mm

(8.9" x 8.9" x 1.6")

Net Weight

0.5kg (1.10lb) (without HDD)

Gross Weight

1.6kg(3.53 lb)(without HDD)

Certifications

CE

EN55032, EN55024, EN50130-4, EN60950-1

FCC

Part 15 Subpart B, ANSI C63.4-2014

UL

UL60950-1
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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SKU: 40444972876

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4.5 ★★★★★
Based on 1930 reviews
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Product Reviews
K
Verified Purchase
Kristen Tryon
Port Orchard, US
★★★★★ 5
The BEST water bottle on the market!
Color: Denim, Size: 32 Ounces
I am in love with this water bottle! I take it everywhere with me, and I love that it has a built-in straw. The color is perfect as well. It motivates me to get my water intake in, and it helps me meet my fitness goals. It is easily washed in the dishwasher, and I don't have to worry about it breaking. It keeps the temperature of my water perfect- whether I add ice or not. It is sturdy but not too heavy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
D
Verified Purchase
Daquita Cooper
Belleville, US
★★★★★ 5
Excellent Summer Resource for Kids!
Format: Paperback
I purchased the "Summer Bridge Activities 2nd to 3rd Grade Workbook" for my 8-year-old, and it has exceeded my expectations in every way. This comprehensive workbook is a fantastic tool to keep children engaged and learning during the summer break. My sibling is an elementary school teacher and introduced me to these books when my son was in Kindergarten and I honestly have not looked back. My LO loved a good challenge so we typically do multiple days to ensure we finish it in its entirety during the summer. I'm constantly recommending these books every summer as I have not yet found anything to replace it. Content Quality: The workbook covers all essential subjects: math, reading comprehension, writing, science, social studies, and even fitness. Each section is well-organized and filled with age-appropriate activities that challenge and entertain. The variety of exercises ensures that my child doesn't get bored, and the progressive difficulty helps build confidence. Educational Value: The math and reading comprehension sections are particularly strong, with clear explanations and plenty of practice problems. The writing prompts encourage creativity and critical thinking, while the science and social studies sections introduce interesting facts and concepts. I appreciate the inclusion of fitness activities, promoting a healthy lifestyle alongside academic learning. Flash Cards: The included flash cards are a wonderful bonus. They are durable, colorful, and perfect for quick review sessions. My child enjoys using them, and they make reinforcing concepts fun and interactive. Ease of Use: The workbook is user-friendly with clear instructions for both parents and kids. It's designed to be self-paced, which means my child can work independently or with minimal guidance. The answer key at the back is helpful for quick checks. Engagement: What sets this workbook apart is its ability to make learning enjoyable. The activities are engaging, and the themes are relevant and interesting. My child looks forward to workbook time each day, which is a huge win for any parent trying to prevent the summer slide. Overall, the "Summer Bridge Activities 2nd to 3rd Grade Workbook" is an excellent investment in your child's education. It's thorough, fun, and well-designed to keep young minds sharp over the summer. I highly recommend it to any parent looking to provide a balanced and enriching educational experience during the school break.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2024
C
Verified Purchase
Cayman Carroll
Boise, US
★★★★★ 5
Good quality for price
Format: Paperback
This was a good book for the summer. It has a variety of activities so my child didn't get bored. It also has some fun "outside" only ideas to get them up and moving. It was a good bridge book that she could (mostly) do independently. However, as they progress through it, parents should be there to help and reiterate different concepts. It was well worth the price and helped the transition go smoothly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025
T
Verified Purchase
TheCarsForever
Boise, US
★★★★★ 5
Perfect To Keep A Youngster's Mind Active Over The Summer
Format: Paperback
Simply put, this is a great activity book to help your child stay mentally active when out of school for the summer. It is not intended to be a full school curriculum, but instead a way to keep children mentally active during the summer break. We have a child leaving 2nd and heading to 3rd grade and were concerned about her skills being lost over the summer. While we do work with her to increase her skillset, we were more concerned about the atrophy that happens when not in school than jumping her ahead. It can be a bit tough for kids returning to school if they go 2-3 months with little book work, so we wanted to help keep her fresh but not fill her summer with full days of 'school' work. This book is a solid mix of skills with some being easy and others more of stretch. The easy and stretch items will vary with the schooling your child gets and their abilities. I suspect most kids heading to third grade will find most of the work in this book at least a strong refresher and potentially help move them in some areas. This is setup to be a roughly 15 minute daily regime but we have enhanced it with some other work. We have math and science specific activity books as well as a reading workbook that we rotate into the mix. We also keep track of words she has a harder time spelling and use them make a 10 spelling word weekly review and test (review for 4 days and test on the fifth). Most of these topics are in the bridge activities book, but we felt a little extra attention would not hurt and some variety in what she is working on keeps things fresh. We do spelling, reading/writing and a couple 'pages' of work each weekday which comes out to about a 45-60 minute batch of work. The Summer Bridge Activities books is a constant in the mix with a page used almost every day and the other work rotated.
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Reviewed in the United States on July 5, 2017
R
Verified Purchase
rainbowbrite0884
Alexandria, US
★★★★★ 4
Great summer workbook!
Format: Paperback
So far an easy book compared to the Argo Summer Academy one that was too challenging. I don't like the way the pages are perforated they fall out of the book too easily. I feel like it is a good balance of keeping up skills already learned and softly introducing a little bit of challenge. I like how each day has math and reading. Easy to keep skills up with only 15 minutes of work a day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025

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