Product Overview
For medium to large commercial CCTV installations requiring high channel density and genuine recording headroom, the DS-7732NI-M4/16P is a 32-channel M Series network video recorder built around a 19-inch rack-mounted 1.5U chassis. It ships with 16 built-in PoE ports supporting IEEE 802.3 af/at with a total budget of 200W, allowing up to 16 cameras to connect directly to the recorder. The remaining 16 channels are added via the network using external PoE switches, making this a strong fit for growing or mixed-connectivity systems. Equipped with 320Mbps incoming and 400Mbps outgoing bandwidth, the recorder handles demanding multi-camera layouts using cameras up to 32MP. It supports H.265+, H.265, H.264+ and H.264 compression, dual HDMI outputs up to 8K and 4K respectively, and 4 SATA bays accepting up to 16TB per drive for up to 64TB of internal storage. With 16 alarm inputs and 9 alarm outputs, the DS-7732NI-M4/16P is suited to sites needing integration beyond CCTV alone.
Key Capabilities
32-Channel IP Camera Recording
Supports up to 32 simultaneous IP camera inputs, giving installers room to cover large or complex sites – warehouses, schools, apartment buildings or multi-tenancy commercial properties – without compromising on camera count or channel headroom for future expansion.
16 Built-In PoE Ports – 200W Budget
Sixteen RJ45 PoE interfaces allow cameras to connect directly to the recorder over a single network cable without a separate switch for the first 16 cameras. The 200W shared budget requires planning when mixing PTZ cameras, ColorVu or other higher-draw devices on the same ports.
Camera Resolution Up to 32MP
The recorder supports cameras up to 32MP, with Ultra HD mode enabling up to 8 channels of 32MP or 24MP input simultaneously. This gives installers flexibility to deploy high-resolution cameras at critical points such as entrances, cash desks or loading areas where image detail matters most.
320Mbps Incoming / 400Mbps Outgoing Bandwidth
High incoming and outgoing bandwidth gives this recorder the headroom to handle 32 cameras operating at elevated bitrates. Systems combining 4MP, 8MP and higher-resolution cameras benefit from the bandwidth margin, particularly when multiple users are viewing streams remotely at the same time.
Dual HDMI Outputs – 8K and 4K
HDMI 1 supports output up to 8K (7680×4320 at 30Hz), while HDMI 2 supports up to 4K (3840×2160 at 60Hz). When HDMI 1 operates at 8K, HDMI 2 is limited to 1080p. This matters for dual-monitor control room setups and should be confirmed at the design stage.
4 SATA Bays – Up to 64TB Internal Storage
Four internal SATA interfaces each accept drives up to 16TB, providing up to 64TB of internal recording capacity. An eSATA port allows additional external expansion. Actual retention periods depend on camera count, resolution, bitrate and recording schedule rather than raw capacity alone.
Best For
- Large Commercial CCTV Systems: 32-channel capacity and 320Mbps bandwidth support demanding multi-camera deployments across warehouses, retail sites, schools and commercial offices.
- Mixed Direct PoE and Network Camera Installations: The 16 built-in PoE ports handle direct camera connections while the remaining 16 channels accept cameras added through the network via external PoE switches, supporting phased or hybrid rollouts.
- Rack-Mounted Equipment Rooms: The 19-inch 1.5U chassis fits standard comms racks and CCTV cabinets in commercial and industrial equipment rooms.
- High-Resolution Camera Deployments: Support for cameras up to 32MP and Ultra HD mode gives installers the option to use high-resolution Hikvision cameras at critical monitoring points without changing the recorder platform.
- Sites Needing Alarm Integration: 16 alarm inputs and 9 alarm outputs allow integration with external sensors, sirens, gate controllers and other alarm-triggered devices directly from the recorder.
Why Choose the DS-7732NI-M4/16P
A smaller 16-channel NVR will not accommodate a growing site, and a recorder without built-in PoE requires a separate switch investment from day one. The DS-7732NI-M4/16P addresses both by providing 32 channels and 16 built-in PoE ports in a single 1.5U rack unit, reducing cabling complexity for the first 16 cameras while leaving room to scale through the network. The 320Mbps incoming bandwidth and support for cameras up to 32MP mean the recorder does not become the limiting factor when upgrading cameras at high-priority locations. Dual HDMI outputs supporting 8K and 4K respectively support control room setups with multiple monitors, and 64TB of internal storage capacity before eSATA expansion suits sites with long retention requirements. Available through Security Wholesalers, the DS-7732NI-M4/16P is positioned as a core recording platform for commercial installations that need to last.
Buyer Decision Tips
Buyer Tip – PoE Ports vs Total Channel Count: The DS-7732NI-M4/16P supports 32 camera channels but only 16 can connect directly to the built-in PoE ports. Cameras 17 through 32 must be added over the network using one or more external PoE switches. Factor the cost and cabling of those switches into the system budget at the design stage, particularly if the installation is in a building where additional switch locations require separate cable runs.
Buyer Tip – Storage Planning for High-Resolution Systems: With 32 cameras potentially running at 4MP, 8MP or higher, do not estimate retention using camera count alone. Calculate storage based on the actual bitrate per camera, frame rate, compression format and recording schedule. A 32-camera system using mostly 8MP cameras at full bitrate will consume available HDD capacity significantly faster than a mixed-resolution system using H.265+ compression and schedule-based recording. Use a storage calculator before selecting drive sizes for the 4 SATA bays.
Key Features & Technical Specifications
| Model |
DS-7732NI-M4/16P |
| Series |
Hikvision M Series 8K NVR |
| IP Camera Inputs |
32 channels |
| Max Camera Resolution |
Up to 32MP |
| Incoming Bandwidth |
320Mbps |
| Outgoing Bandwidth |
400Mbps |
| Compression |
H.265+ / H.265 / H.264+ / H.264 |
| HDMI 1 Output |
Up to 8K, 7680 x 4320 / 30Hz |
| HDMI 2 Output |
Up to 4K, 3840 x 2160 / 60Hz (limited to 1080p when HDMI 1 is set to 8K) |
| VGA Output |
1920 x 1080 / 60Hz |
| PoE Ports |
16 x RJ45 10/100Mbps |
| PoE Budget |
Up to 200W total |
| PoE Standard |
IEEE 802.3 af/at |
| Network Interface |
1 x RJ45 10/100/1000Mbps LAN |
| HDD Bays |
4 x SATA |
| Max Internal HDD Capacity |
Up to 16TB per HDD (64TB total across 4 bays) |
| eSATA |
1 x eSATA interface |
| Synchronous Playback |
16-channel |
| Alarm Inputs / Outputs |
16 inputs / 9 outputs |
| USB Ports |
2 x USB 2.0 (front), 1 x USB 3.0 (rear) |
| RS-485 / RS-232 |
2 x RS-485, 1 x RS-232 |
| Chassis |
19-inch rack-mounted 1.5U |
| Dimensions |
440 x 389 x 72mm |
| Weight |
5kg (without HDD) |
| Power Supply |
100-240VAC, 50-60Hz |
| Operating Temperature |
-10 degrees C to 55 degrees C |
Ideal Use Cases
Warehouses and Industrial Sites
32-channel capacity and 320Mbps incoming bandwidth handle the camera density typical of large warehouse floors, loading docks, perimeter fencing and internal aisle monitoring, where multiple high-resolution cameras run simultaneously across wide areas.
Schools and Education Campuses
Centralised recording across classrooms, corridors, playgrounds, staff car parks, entries and administration areas is supported by 32 channels and rack-mount installation in a dedicated server or comms room on campus.
Apartment Buildings and Body Corporate Sites
Lobbies, lifts, bin rooms, mail areas, car parks and access points across a multi-level building can be covered by mixing direct PoE cameras on the 16 built-in ports with additional cameras connected via the network through external switches.
Retail and Commercial Sites
Point-of-sale zones, stockrooms, loading bays, entrances and car park areas can be monitored across 32 channels, with alarm inputs and outputs allowing integration with door controllers, sirens or other site devices directly through the NVR.
Commercial Office Buildings
Reception desks, server rooms, car parks, stairwells, lift lobbies and perimeter entries across a multi-floor office building benefit from the recorder’s 32-channel capacity, 16-channel synchronous playback and rack-mount form factor for equipment room installation.
Large Residential and Acreage Properties
High-end residential installations requiring more than 16 cameras, long footage retention and professional-grade recording hardware benefit from the 32-channel layout, up to 64TB internal storage and support for high-resolution Hikvision IP cameras.
Choosing the Right Model
- Choose this model if: Your installation requires 17 to 32 cameras, needs a rack-mount recorder that fits a 19-inch cabinet, uses cameras up to 32MP at select locations, requires dual HDMI output for a control room, or needs 16 alarm inputs and 9 outputs for external device integration.
- Choose a different model if: Your system will never exceed 16 cameras – a smaller NVR will be more cost-effective and require less rack space. If RAID storage redundancy is a hard requirement, this model does not support it and an alternative platform is needed. If all 32 cameras must connect via built-in PoE without external switches, a different unit or network design is required.
FAQs
- If the DS-7732NI-M4/16P has 32 channels, why does it only have 16 PoE ports?
The 16 built-in PoE ports handle direct camera connections without a separate switch. Channels 17 through 32 are added over the local network using external PoE switches connected to the recorder’s 1Gbps LAN port. This hybrid approach is common in larger installations where not every camera location is close to the recorder.
- What is the total PoE power budget and how should I plan for it?
The 16 built-in PoE ports share a total budget of 200W. Standard IP cameras typically draw 7 to 13W each, but PTZ cameras, cameras with supplemental white light and cameras with onboard heaters can draw considerably more. Calculate the combined draw of all directly connected cameras before installation to confirm the budget is not exceeded.
- Does the 8K HDMI output affect the second HDMI output?
Yes. When HDMI 1 is configured for 8K output, HDMI 2 is limited to a maximum of 1080p. If the installation requires one 8K monitor and one 4K monitor simultaneously, this limitation needs to be addressed at the design stage. HDMI 2 supports up to 4K only when HDMI 1 is not set to 8K.
- What hard drives are recommended for this recorder?
Surveillance-grade drives such as WD Purple or Seagate SkyHawk are recommended for 24/7 recording workloads. Standard desktop drives are not rated for the continuous write cycles of CCTV recording. The DS-7732NI-M4/16P accepts up to 4 internal SATA drives at up to 16TB each, giving a maximum internal capacity of 64TB.
- Does the DS-7732NI-M4/16P support ONVIF cameras?
Yes, the recorder supports ONVIF and RTSP access protocols, allowing some third-party IP cameras to be connected. However, smart features and VCA event support depend on the connected camera model. Functionality is typically more complete when used with compatible Hikvision cameras. Check camera compatibility before committing to a mixed-brand system design. The DS-7732NI-M4/16P is part of the Security Wholesalers range and is supported locally.
- Is RAID supported on this model?
No. Hikvision’s datasheet lists RAID as not applicable for the DS-7732NI-M4/16P. Storage redundancy through RAID is not available on this unit. If storage redundancy is a project requirement, a different recorder platform with RAID support is needed.
- Can smart events such as line crossing and intrusion detection be used with this recorder?
The DS-7732NI-M4/16P supports VCA events including motion detection, line crossing, intrusion detection, heat map, ANPR and people counting, but the availability of each feature depends on the connected camera model, firmware version and system configuration. Not every smart feature is available on every camera. Confirm camera-level compatibility before designing a system around specific analytics requirements.
Additional Information
Is this better than a 16-channel NVR?
Hikvision Warranty
3-Year Manufacturer Warranty
All Hikvision IP cameras and recording devices (NVRs/DVRs) are covered by a
3-year back-to-base manufacturer warranty and authorised dealer partner support.
Note: Disk drives are limited to a 3-year warranty.
Our warranty is limited to the replacement of faulty items or parts
and does not include damage caused by incorrect fitting of parts or accessories.
(a) Australian Consumer Law (ACL)
Certain legislation, including the Australian Consumer Law (ACL) in the
Competition and Consumer Act 2010 (Cth), and similar consumer protection
laws and regulations may confer you with rights, warranties, guarantees, and remedies
relating to the provision of goods or services to you by us via the Site which cannot
be excluded, restricted, or modified. Our liability is governed solely by the ACL and
these Terms.
(b) Goods
If you are a consumer as defined in the ACL, the following notice applies to you:
“Our goods come with warranties and guarantees that cannot be excluded under the
Australian Consumer Law (Consumer Guarantees). You are entitled to a replacement or
a refund for a major failure and for compensation for any other reasonably foreseeable
loss or damage. You are also entitled to have the goods repaired or replaced if the
goods fail to be of acceptable quality and the failure does not amount to a major
failure.”
(c) Our Warranties
To the extent permitted by law, we exclude all express and implied warranties,
and all material and work is provided to you without warranties of any kind,
either express or implied. We expressly disclaim all warranties including but
not limited to implied warranties of merchantability and fitness for a particular
purpose.
(d) Manufacturer Warranties
Certain products, including particular models of IP security cameras and DVR/NVR
equipment, may come with a manufacturer’s warranty. The manufacturer’s warranty is
in addition to but may overlap with any rights and remedies you may have under
applicable law, including any Consumer Guarantees. If you are not considered a
“consumer” within the meaning of the ACL, the manufacturer’s warranty may be your
sole remedy. Many manufacturers’ warranties do not apply in a business or commercial
setting. Please contact the manufacturer if you would like to make a claim under
the manufacturer’s warranty.
(e) Repair, Replacement, or a Refund
If you wish to seek repair, replacement, or a refund for a product, please
contact us and we will explain the requirements to you. This may include you
providing evidence of the faulty product to us.
(f) Refund
You are not entitled to a refund for change of mind. If you are entitled to a
refund, we will only provide it once evidence of the faulty product is received
by us, or once we have received the product at our warehouse and inspected it
to assess whether it is eligible for a refund under these Terms. Any refund we
make will be by the same payment method used to purchase the product.
(g) Installed Products
Subject to this clause, we will not accept for return any product that has been
used, connected, installed, attempted to be connected or installed, or if your
product is custom-made or is a special buy product.
(h) Packaging
You must adequately package any product you are returning for our collection
to ensure that it is not damaged during return delivery to our warehouse. You
are also responsible for arranging the return delivery and the costs involved.
(i) Duty of Care
You have a duty of care for the product while it is in your possession. If
you damage products and then subsequently return them, you may be liable to pay
to repair the product to its original condition. In these circumstances, where
a repair is not economically viable, no refund will be made.
For more terms & conditions, please visit www.securitywholesalers.com.au/terms-and-conditions
Official Hikvision Partner for 2026
Authorised Hikvision Dealer Partner for 2026
As a Trusted Hikvision Dealer Partner and Hikvision Authorised Store, SecurityWholesalers.com.au is more than just a reseller — we’re a nationally recognised partner delivering genuine Hikvision solutions, backed by expert technical support and deep industry knowledge.
Our team supports systems across all major sectors — including residential homes, commercial businesses, schools, government infrastructure, warehouses, and local councils. When you choose us, you’re selecting a Hikvision-certified partner with a proven track record in performance, reliability, and customer satisfaction.
- Official Hikvision Product Support
Get access to genuine Hikvision technical resources and support, delivered by trained professionals who work with these systems daily.
- Comprehensive System Assistance
From product selection to setup, configuration, remote access support, and firmware upgrades — we offer step-by-step guidance to ensure your system is optimal.
- Reliable After-Sales Service
We provide continued support for configuration, troubleshooting, and warranty claims. Whether you’re a first-time user or a seasoned installer, we ensure your Hikvision system operates flawlessly.
- Genuine Products & Fast Dispatch
All Hikvision stock is sourced from authorised Australian distributors and shipped promptly from our local warehouse. No delays, no grey-market risks, no international return hassles.
- Industry-Wide Trust
Our clients range from councils and schools to enterprise businesses and security professionals — all trusting us for exceptional service, product reliability, and expert advice.
- Real-World Security Expertise
Unlike generic electronics stores, we specialise in security. Our team includes qualified installers and consultants offering tailored recommendations based on real-world experience — not just inventory lists.
- 3 Years Manufacturer Warranty ensuring your security system remains reliable for years to come.
At SecurityWholesalers.com.au, we’re committed to more than just competitive pricing — we offer true partnership and protection through every stage of your Hikvision journey. We’re not your average security equipment supplier — choose the team that industry professionals trust.
