Dahua DHI-NVR4104HS-P-4KS2/L 4 Channel Compact 1U 4PoE 4K H265 Lite Network Video Recorder

Model: DHI-NVR4104HS-P-4KS2/L

Who This Is For

For installers and small business owners who need a compact, self-contained NVR that handles power delivery and recording in a single tidy unit, the Dahua DHI-NVR4104HS-P-4KS2/L is built around that exact brief. With 4 built-in PoE ports, it powers and connects up to 4 IP cameras over a single Cat cable run per camera - no separate PoE switch required. Supporting up to 8MP (4K) resolution with Smart H.265+ compression, it suits shopfronts, small offices, childcare facilities, and residential installs where storage efficiency matters as much as image detail. The compact 1U form factor slots into a small comms cabinet or a drawer-style enclosure without consuming rack space. If your cameras support AI functions like SMD Plus or perimeter protection, those analytics pass through to the NVR for smart search and event filtering - making post-incident review faster than trawling through standard motion recordings.

What This NVR Actually Does

Who Buys This Model

• Security installers on small commercial jobs: The 4 PoE ports mean no separate switch is needed for a 4-camera shopfront or office install, keeping the job clean and the parts list short.
• Small business owners self-managing their system: The Easy4ip app and local GUI mean non-technical users can check live view, pull back an event clip, and receive push alerts without installer support for day-to-day tasks.
• IT managers adding a dedicated surveillance segment: ONVIF Profile T/S/G support and standard network protocol coverage (HTTPS, SNMP, DDNS, P2P) allows the NVR to sit within a managed network environment without workarounds.
• Childcare and education facilities requiring AI-filtered alerts: SMD Plus reduces nuisance alerts from environmental motion, making after-hours perimeter notifications actionable rather than overwhelming for on-call staff.

Honest Assessment

The DHI-NVR4104HS-P-4KS2/L does its job well in a defined scope: 4 cameras, PoE power delivery, 4K recording, and Smart H.265+ storage efficiency in a compact 1U housing. The AI analytics pipeline - SMD Plus, perimeter protection, people counting, heat map - are all processed by the camera, not the NVR itself, which keeps the hardware cost down but means AI functions depend entirely on the capability of the cameras you pair with it. ANR adds genuine resilience for network drop-out scenarios. The 80 Mbps access bandwidth is appropriate for 4 channels of high-resolution footage without congestion. Where this NVR reaches its limit: it handles exactly 4 channels and cannot be expanded. If there is any realistic chance the installation will grow beyond 4 cameras, an 8-channel model is the better starting point. This unit is available through Security Australia and suits sites where the 4-camera ceiling is a firm, long-term fit.

Before You Buy

Quick Fit Check

• Good match if: You are installing exactly 4 IP cameras and want PoE power delivery handled by the NVR itself, avoiding a separate switch in a small comms enclosure.
• Good match if: Your cameras support Dahua SMD Plus or perimeter protection and you want AI-filtered event search and reduced false alerts without investing in a more expensive NVR platform.
• You may need a different model if: The site has more than 4 cameras now, or is likely to grow - an 8-channel or 16-channel NVR with a higher PoE port count would be a better long-term fit and is worth reviewing on securityaustralia.com.au.

Key Features & Technical Specifications

Real-World Scenarios

How It Compares

• Choose this if: You need a compact, all-in-one 4-channel PoE NVR that powers cameras directly, records at up to 4K with Smart H.265+ compression, and processes AI analytics from compatible Dahua cameras - without requiring a separate PoE switch.
• You may need a different model if: The site requires more than 4 cameras or higher combined PoE wattage - an 8-channel or 16-channel PoE NVR would give room to grow and is available at securityaustralia.com.au.
• Pairs well with: Dahua SMD Plus or AI-enabled IP turret or dome cameras, plus a surveillance-grade 3.5-inch SATA hard drive rated for 24/7 write cycles.

Common Questions

1. Does this NVR come with a hard drive included?

   No. The DHI-NVR4104HS-P-4KS2/L ships without a hard drive. You need to install a compatible surveillance-grade 3.5-inch SATA HDD before it will record. Use a drive rated for 24/7 continuous write cycles - standard desktop drives are not recommended. Calculate storage required based on your resolution, codec (Smart H.265+ significantly reduces file size), and the number of days retention you need before purchasing a drive.

2. Will this NVR work with my existing non-Dahua cameras?

   Yes, with limitations. The NVR supports ONVIF Profile T/S/G and confirmed third-party brands including Axis, Sony, Samsung, Panasonic, Pelco, Arecont and Canon. Standard recording and live view will work. However, AI features such as SMD Plus and perimeter protection only function when Dahua AI-capable cameras are connected - these analytics are processed at the camera and passed to the NVR, not generated by the NVR itself.

3. What does SMD Plus actually do compared to standard motion detection?

   SMD Plus reduces false alerts by classifying detected motion as either a human or a vehicle before triggering a recording event or notification. Standard motion detection triggers on any pixel change - wind, insects, headlights, shadows. With SMD Plus-enabled cameras connected to this NVR, you can search recordings filtered by target type (human or vehicle only) and receive alerts only for those classifications, which significantly reduces the time spent reviewing irrelevant events.

4. Can I access this NVR remotely from my phone?

   Yes. The NVR supports remote access via the Easy4ip app on both Android and iOS. P2P connectivity is built in, which simplifies setup - you do not need a static IP address or manual port forwarding in most standard router configurations. The app supports live view, event push notifications and recorded footage playback.

5. What happens to recording if the network connection between the NVR and a camera drops?

   ANR (Automatic Network Replenishment) handles this. When the network link is interrupted, the camera writes footage to its own SD card locally. Once the connection is restored, the NVR automatically retrieves the stored footage and inserts it back into the recording timeline. ANR requires that the connected camera supports SD card recording and has an SD card installed - this is not enabled automatically without compatible cameras and the correct NVR configuration.

6. Does this NVR support 4K display output?

   Yes. The HDMI output on this NVR supports up to 3840x2160 (4K UHD) resolution. If you connect a 4K monitor or display, the NVR will output at full 4K resolution. VGA output is limited to 1920x1080 maximum. For full 4K review capability, connect via HDMI to a 4K-capable display - this is particularly useful when examining high-resolution footage from 8MP cameras where detail in a zoomed still frame matters for identification purposes. This model is part of the Security Australia range of Dahua recording solutions.

7. Is Smart H.265+ compression enabled by default, or does it need to be set up per channel?

   Smart H.265+ is selectable, not always on by default. Each channel can be set individually to Smart H.265+, Smart H.264+, H.265, or H.264 depending on your camera's output capability and storage strategy. Smart H.265+ delivers the greatest storage savings but requires that the connected camera outputs an H.265 stream. If you are connecting older cameras that only support H.264, set the corresponding channel to H.264 or Smart H.264+ rather than forcing an incompatible codec setting.

Downloads & Resources

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