Dahua 16 Channel 1U 2HDDs 16PoE WizSense NVR - NVR4216-16P-AI/ANZ

Sixteen Built-In PoE Ports

Every channel has its own PoE port supporting IEEE 802.3af and 802.3at, so cameras connect directly to the recorder with one cable each. Across sixteen positions that saves a separate switch, its power, its rack space and its configuration — and Dahua cameras are detected automatically without manual IP addressing.

Two Drive Bays, Up to 20 TB

Two SATA bays supporting a combined 20 TB, with disk grouping so you can control how channels are distributed across drives. On a sixteen-camera system that capacity is not a luxury — it is what makes a meaningful retention period achievable at all.

Records Up to 16MP

Accepts everything from CIF through 1080p, 4MP, 6MP, 8MP and up to 16MP per channel, so the recorder will not be the thing limiting your camera choice — now or when you upgrade individual positions later.

256 Mbps Bandwidth

256 Mbps incoming, recording and outgoing — generous headroom for sixteen channels. Note this drops to 180 Mbps when NVR-side AI functions are enabled; see the buyer tips if you are planning high-resolution cameras across all sixteen positions.

SMD Plus and Perimeter Protection

Four channels of NVR-side SMD Plus classification filtering humans and vehicles from leaves, rain and lighting changes, plus two channels of perimeter protection with ten IVS rules each. Useful for adding intelligence to older cameras that have none — see the AI explainer below for how this interacts with AI cameras.

Face Recognition With Attributes

Up to ten face databases holding 20,000 images, with attribute detection covering gender, age group, glasses, expression, mask and beard. Note that facial recognition carries specific privacy obligations in Australia — see the buyer tips before enabling it commercially.

Dual Independent Displays

One HDMI at up to 3840 × 2160 and one VGA at up to 1080p, configurable as simultaneous or heterogeneous outputs — so the two screens can show different things. Useful in a control room or a shop where reception and the back office need different views.

Alarm I/O and RS-232

Four alarm inputs and two alarm outputs, plus RS-232 and audio in and out on RCA. That lets the recorder integrate with an existing alarm panel, drive external sirens or relays, and take inputs from beams and door contacts — genuine system integration rather than running in parallel.

Broad Third-Party Camera Support

ONVIF 23.12 with Profiles S, G and T, plus named support for Panasonic, Sony, Hanwha, Axis, Pelco, Arecont and Canon. On a commercial upgrade that breadth matters — existing cameras can often be brought across rather than replaced all at once.

Smart H.265+ and Smart Playback

Smart H.265+ compresses substantially harder than H.264, which across sixteen channels is the difference between weeks and months of retention. Playback modes include instant, general, event, tag and smart playback, so finding an incident does not mean scrubbing a timeline.

Industrial-Grade Hardware

An industrial-grade processor running embedded Linux, rated −10°C to +55°C at 10–93% humidity, in a 1U chassis at 375 × 329 × 53 mm. Under 10 W without drives, so the bulk of the power draw is the PoE and the disks rather than the recorder itself.

Security Baseline 2.3

Dahua Security Baseline 2.3 with HTTPS, IP filtering and the rest of the hardening feature set — which matters more than most buyers realise on an internet-connected device holding sixteen channels of footage.

AI by Camera — all channels

If your cameras have onboard AI — every Dahua WizSense model does — the analysis happens at the camera before anything reaches the recorder. Dahua rates this as all channels, at 8 targets per second for perimeter and face, and 16 targets per second for SMD. No per-channel restriction applies. This is how most modern systems should be built.

AI by NVR — limited channels

If your cameras cannot analyse for themselves — older models, basic cameras, third-party units — the recorder does it instead. That processing is finite: 4 channels of SMD Plus, 2 channels of perimeter protection, 1 channel of face detection. Useful for adding intelligence to cameras that have none, but not a substitute for AI cameras across sixteen positions.

Retail and Hospitality

Entry, tills, floor, stockroom, rear door, loading, car park, office and staff areas add up quickly past eight channels. Dual independent displays let reception or the counter run one view while the office runs another, and the alarm I/O ties the recorder into an existing panel.

Warehouses and Industrial Sites

Loading docks, roller doors, yard perimeter, plant compounds and internal aisles typically need twelve to sixteen positions. Sixteen PoE ports means one cable per camera and no separate switch, and the two drive bays hold enough history for an insurance or WHS investigation.

Strata and Apartment Buildings

Lobbies, lifts, car park entries, bin areas, mail rooms, bike stores and boundary positions across a building comfortably reach sixteen. Broad third-party camera support also helps where a building has accumulated cameras from several installers over the years.

Acreage and Multi-Building Residential

A house, a shed, a workshop, a gate and a boundary is more positions than most people expect. Sixteen channels covers it with headroom, and the long retention from two drives matters on rural properties where an incident may not be noticed for days.

Choose this model if…

• You are running nine to sixteen cameras, or expect to within a year or two.
• You need long retention — two bays supporting 20 TB is the reason.
• You want built-in PoE across all sixteen positions with no separate switch.
• Your camera list fits inside the 130 W PoE budget.
• You have an alarm system and want the recorder wired into it.
• You are consolidating two smaller recorders onto one timeline.
• You need broad third-party camera support for a mixed site.

Choose a different model if…

• You are running eight cameras or fewer. The 8-channel Pro model gives you the same two drive bays for less.
• You only need a few weeks of retention on a small system. The 8-channel single-bay model is the economical choice.
• Your cameras are high-draw — strobes, sirens, heaters — and sixteen would exceed 130 W. Plan a separate PoE switch for some.
• You need NVR-side AI on more than four channels. Use cameras with onboard AI instead.
• Your cameras are analogue over existing coax. An XVR records those without rewiring.
• You need drive redundancy rather than capacity. Two bays give grouping, not RAID.

Can it really power sixteen cameras?

It depends entirely on which cameras. The sixteen PoE ports share a 130 W total budget — around 8 W per camera if you use every port — with up to 25.5 W available on any single port. Standard fixed turrets drawing 6–10 W each fit comfortably. Cameras with strobes, sirens, speakers or heaters draw considerably more, and sixteen of those would exceed the budget. The symptom is cameras booting and rebooting rather than failing cleanly. Send us your camera list and we will add it up before you order.

The AI only supports 4 channels of SMD Plus — does that mean AI on a quarter of my cameras?

No, and this is the most common misreading. Those limits apply to AI by NVR — the recorder analysing on behalf of cameras that cannot. If your cameras have onboard AI, which every Dahua WizSense model does, they classify targets themselves and Dahua rates that as working across all sixteen channels. Build with WizSense cameras and the limits never apply; use the NVR-side AI to add intelligence to older cameras.

Why does bandwidth drop from 256 to 180 Mbps?

Because the processor is running AI analysis as well as recording, and that computation has to come from somewhere. Decoding capability drops with it — from four channels of 8MP to three, and from sixteen channels of 1080p to twelve. Letting the cameras handle their own AI avoids the reduction entirely, which is another reason to build with WizSense cameras where you can.

Does it come with hard drives?

No — it ships with two empty bays, so you will need at least one drive before it can record. Use surveillance-rated drives such as WD Purple or Seagate SkyHawk; standard desktop drives are designed for intermittent use and fail early under continuous surveillance writing, usually silently. On a sixteen-camera system we would generally recommend filling both bays. We stock surveillance drives and can supply the unit with them fitted.

Do two drive bays mean my footage is backed up?

Not automatically — the two bays give capacity and disk grouping rather than mirroring. What disk grouping does let you do is control which channels record to which drive, so you can put the critical cameras on one disk and general coverage on the other. If a drive then fails you lose half the system rather than all of it, and you choose which half. It costs nothing to configure and is well worth doing.

How long will sixteen cameras record for?

It depends on resolution, frame rate, compression and how much movement the cameras see. Sixteen cameras fill storage considerably faster than eight, and 8MP fills it faster than 4MP — Smart H.265+ helps significantly. If you need a specific retention period, such as the 30 days many insurers and compliance requirements specify, tell us the camera spec and we will size both drives properly rather than guessing.

Do I need a separate PoE switch?

Not for a standard sixteen-camera system — that is the main reason to choose this model. All sixteen ports are built in, so cameras plug directly into the recorder using one Cat5e or Cat6 cable each for both data and power, and Dahua cameras are detected automatically. You would only need an additional switch if your cameras are high-draw enough to exceed the 130 W total budget, in which case running a few from a separate switch solves it.

Can I display all sixteen cameras at once?

Yes — sixteen channels at 1080p with AI disabled, or twelve at 1080p and sixteen at 720p with NVR-side AI running. Both HDMI and VGA support 1, 4, 8, 9 or 16-way layouts and can be configured independently, so two screens can show different views. Your recorded evidence is unaffected: every channel records at full resolution regardless of what is on screen.

Will it work with non-Dahua cameras?

Yes, and the support is broader than most recorders — ONVIF 23.12 with Profiles S, G and T, plus named support for Panasonic, Sony, Hanwha, Axis, Pelco, Arecont and Canon. That is genuinely useful on a commercial upgrade where a site has accumulated cameras from several installers. Note that another manufacturer's intelligent features may not surface through this recorder; plan for recording and check anything beyond that with us.

What can I do with the alarm inputs and outputs?

Four inputs let external devices — beams, door contacts, an alarm panel output — trigger recording, snapshots or alerts on the recorder. Two outputs let the recorder drive an external siren, strobe or relay when an event occurs. On a commercial site with existing alarm infrastructure, wiring the two together turns two parallel systems into one integrated response. Plan the cabling during installation.

Should I use the face recognition?

Think carefully first. Facial recognition data is biometric information under the Australian Privacy Act, and using it in a commercial or public-facing setting brings notification, consent and data-handling obligations that ordinary CCTV does not — several Australian businesses have faced regulatory action over exactly this. For most sites, SMD Plus and perimeter protection deliver the practical benefit without the compliance burden. If you do want it, get advice on your obligations first.

Where can I buy it and what support is included?

Available from Total Security Equipment online and across both showrooms, with Australia-wide shipping. We stock compatible Dahua cameras, surveillance-rated drives, racks and accessories, and can supply the recorder with drives already fitted. Trade accounts and volume pricing are available for installers, and our team can check your PoE budget, bandwidth and drive sizing before you order.

Melbourne HQ

26 Davies Ave., Sunshine North, VIC 3020
03 9079 5566

Sydney Branch

38 Lisbon St., Fairfield East, NSW 2165
02 8722 0348

Ordering & Support

• Australia-wide shipping
• Ships without hard drives — surveillance drives in stock
• We can fit both drives before shipping on request
• Compatible Dahua cameras, racks and accessories available
• Trade accounts and volume pricing
• Phone support on PoE budgeting and drive sizing
• Download Spec Sheet