SKU: 22553692930

DAHUA NVR2104-S3 4 Channel Smart 1U 1HDD Network Video Recorder

$64.80 $72.00
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Description

DAHUA NVR2104-S3 4 Channel Smart 1U 1HDD Network Video RecorderNVR2104 S3 > Smart H. 265+ H. 265 Smart H. 264+ H. 264 decoding format > Max. decoding capability: 6 1080p@30 fps. Supports adaptive decoding > AI by camera: perimeter protection,and SMD Plus > Connected to the third party network cameras > Security baseline 2. 1 Product Data System Main Processor Industrial grade embedded processor Operating System Embedded Linux Operating Interface Web; Local GUI AI AI by Camera Perimeter protection; SMD Plus

NVR2104-S3

> Smart H.265+/H.265/Smart H.264+/H.264 decoding format

> Max. decoding capability: 6 × 1080p@30 fps. Supports adaptive decoding

> AI by camera: perimeter protection,and SMD Plus

> Connected to the third-party network cameras

> Security baseline 2.1



Product Data

System

Main Processor

Industrial-grade embedded processor

Operating System

Embedded Linux

Operating Interface

Web; Local GUI

AI

AI by Camera

Perimeter protection; SMD Plus

Perimeter Protection

Perimeter Performance of AI by Camera (Number of Channels)

4

SMD Plus

SMD Plus by Camera

4-channel SMD Plus (AI by camera), secondary filtering for human and motor vehicle SMD Plus, reducing false alarms caused by leaves, rain and lighting condition change

Audio and Video

Access Channel

4 channels

Network Bandwidth

Access: 80 Mbps; Storage: 80 Mbps; Forward: 60 Mbps

Resolution

12MP; 8MP; 5MP; 4MP; 3MP; 2MP; 720p; D1

Decoding Capability

1-channel 12MP@30 fps; 1-channel 8MP@30 fps; 2-channel 5MP@30 fps; 3-channel 4MP@30 fps; 6-channel 1080p@30 fps

Video Output

1 × VGA, 1 × HDMI (simultaneous)

Multi-screen Display

1, 4 views

Third-party Camera Access

Onvif

Compression Standard

Video Compression

Smart H.265; H.265; Smart H.264; H.264

Audio Compression

PCM; G711A; G711U; G726

Network

Network Protocol

HTTP; HTTPS; TCP/IP; IPv4; RTSP; UDP; NTP; DHCP; DNS; SMTP; UPnP; IP Filter; DDNS; Alarm Server; IP Search (Supports Dahua IP camera, DVR, NVS, etc.); P2P

Mobile Phone Access

Android; iOS

Interoperability

ONVIF (profile T/S/G); CGI; SDK

Browser

Chrome; IE 9 or later; Firefox

Recording Playback

Multi-channel Playback

Up to 4 channels

Record Mode

Manual record; alarm record; motion detection record; schedule record

Storage Method

Local HDD and network

Backup Method

USB device

Playback Function

1. Play; pause; stop; fast forward; fast backward; rewind; play by frame
2. Full screen; backup (video clip/file); partially zom in; audio on/off

Alarm

General Alarm

Motion detection; privacy masking; video loss; PIR alarm

Anomaly Alarm

Camera offline; storage error; disk full; IP conflict; MAC conflict; login lock; cyber security exception

Intelligent Alarm

Perimeter protection; SMD Plus

Alarm Linkage

Recording; snapshot; buzzer; log; preset; email; tour

Port

Audio Input

1

Audio Output

1

HDD Interface

1 SATA port, up to 16 TB. The maximum HDD capacity varies with environment temperature

USB

2 rear USB 2.0 ports

HDMI

1

VGA

1

Network Port

1 × RJ-45, 10/100 Mbps self-adaptive Ethernet port

General

Power Supply

12 VDC, 1.5 A

Power Consumption

Total output of NVR is ≤ 10 W (without HDD)

Net Weight

0.42 kg (0.93 lb)

Gross Weight

1.03 kg (2.27 lb)

Product Dimensions

204.6 mm × 206.4 mm × 45.6 mm (8.06" × 8.13" × 1.80") (W × L × H)

Packaging Dimensions

96 mm × 364 mm × 261 mm (3.78" × 14.33" × 10.28") (W × L × H)

Operating Temperature

–10 °C to +55 °C (14 °F to +131 °F)

Operating Humidity

10%–93% (RH)

Installation

Rack or desktop

Certifications

CE: EN62368-1; EN55032; EN55024; EN55035; EN61000-3-2; EN61000-3-3; EN50130-4
FCC: Part 15 Subpart B
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22553692930

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4.4 ★★★★★
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Verified Purchase
Bella Bellini
West Palm Beach, US
★★★★★ 5
Fantastic Foam and Spectacular Steamer
Best electric steamer/frother evvveerrrrr! I've had several froth/steamers over the years and this is the BEST one by far. It's compact, quiet, and makes thick gorgeous foam. My coffees, lattes, etc. now look like fancy five star restaurant quality works of art! I've become a mini barista as this makes my morning coffee routine an indulgence. It's really easy to use and the color coding is so clever because you always know what the dial is set on. It's super functional and has four options for mixing ability. You just dial to one of your four choices (thick foam, light foam, hot but no foam for say hot chocolate, and cold foam for iced drinks) and push and about two mins later, it's done. It's very compact and takes up almost no space on my kitchen counter. The blue base is also very pretty and the canister is easy to clean. Bonus is that you get two mixer pieces, the second one easily stores under the base. I use oat and almond milks primarily, and I get great results with thick foam! Love this little froth/steamer!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
R
Verified Purchase
Risan
Port Orchard, US
★★★★★ 5
Best frother
I enjoy a nice cappuccino in the morning. I’ve had 3 frothers. This is by far the best. Why: It’s 2 pieces which makes it so much easier to wash. You don’t have to worry about the bottom getting wet and it’s just easier to clean. Capacity: this makes me a bigger cup of cappuccino. It’s the right amount of milk and foam. My other models also had too much foam. Never spills over: when I fill it to the max line for foam it has never spilled over my other 2 frothers always did and made a horrible mess. It warms the milk more than my other 2 models. It’s hot not just warm. It’s easy to use and a great price. I highly recommend this frother.
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Reviewed in the United States on March 31, 2026
L
Verified Purchase
Lee
Lake Worth, US
★★★★★ 1
Failed Shortly After Purchase and Required Too Much Effort to Resolve
This product was purchased as a holiday gift for my spouse. Out of the box the product made a load mechanical noise (similar to a baseball card in bicycle spokes) – but it produced a nice heated frothed milk. Less than 3 months after first using the frother, it completely stopped frothing. The heating unit continued to work but the spinning disk did not move. I contacted the seller and within 48 hours they requested a video of proof that the frother was no longer working. I provided the requested video 6 hours after receipt of seller's request. Since then, I have not received any communications, and my follow up emails receive NO RESPONSE. Amazon should consider pulling this product and seller from their website. UPDATE: After multiple follow-up contacts over a month's time, manufacturer eventually issued a full refund.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
T
Verified Purchase
Traci
Grantham, US
★★★★★ 4
Total game changer
Great frother. Nice capacity for a lot of foam. I've had it for a couple months. It's started out pretty quiet for about a month but I've noticed that the motor seems to be a little louder than usual but still a low sound. Not a big deal though. It works great. Just wanted to mention that the quality of milk matters. For example, I shop at Aldi and I get their oat milk. It doesn't froth as good as a higher quality name brand oat milk. Lower quality almond milk won't hardly froth at all. Get a high quality almond milk. Whole milk and 2% does great. I love the fact that I can warm my milk in case I want a hot matcha latte which I have often or golden milk. I also want to mention that I also use flavored creamer which makes a nice foam. Cold or hot This machine is a space saver. Easy to use. Easy to clean. You get two frothing elements which can be cleverly hidden under the frother when not in use. I use this almost every day. I really recommend this frother. It's a game changer
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Reviewed in the United States on February 6, 2026
O
Verified Purchase
Organized Digital Life
Port Orchard, US
★★★★★ 5
One of My Most Used Kitchen Appliances
I've been using this milk frother almost every day, and it's become one of my favorite kitchen appliances. I originally purchased it because I wanted an easy way to make coffee shop-style drinks at home instead of spending money on coffee runs. It works great for both hot and cold foam, so I use it year-round for everything from hot coffee to iced coffee. The foam comes out smooth and creamy, and it's made a noticeable difference in my homemade drinks. I also like that it's simple to use and easy to clean after each use. If you enjoy lattes, iced coffee, cappuccinos, or just want to make your morning coffee feel a little more special, this has been a worthwhile purchase for me. It's one of those products that I use often enough that it has easily earned a permanent spot on my kitchen counter.
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Reviewed in the United States on May 29, 2026

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