Product Overview
Built for medium to large commercial installations demanding serious channel density and future-proof resolution, the DS-7732NI-M4/24P is a 32-channel rack-mounted NVR from Hikvision’s M Series range. Housed in a 1.5U 19-inch rack chassis, it fits cleanly into server racks at schools, shopping centres, corporate campuses, and multi-site commercial facilities. Featuring 24 embedded PoE ports rated to IEEE 802.3 af/at with a combined budget of up to 200W, it simplifies camera deployment by eliminating the need for separate PoE switches across most standard installations. Equipped with H.265+ decoding and a 320 Mbps incoming bandwidth, it handles high-density streams without bottlenecks. The primary HDMI output supports 8K display at 7680×4320, while a second independent HDMI output delivers 4K for a dedicated monitoring workstation or operator console. With 4 SATA bays accepting up to 16TB per drive and an additional eSATA port for external expansion, storage capacity scales alongside the installation. Supplied without HDDs, allowing integrators to specify appropriate surveillance-grade drives for each deployment.
Key Capabilities
32-Channel IP Video with Up to 32MP Input
The DS-7732NI-M4/24P accepts 32 simultaneous IP camera streams at resolutions up to 32MP, covering everything from 1080p dome cameras through to ultra-high-definition multi-pixel sensors, giving installers maximum flexibility across mixed-camera deployments.
24-Port Embedded PoE (Up to 200W)
With 24 built-in IEEE 802.3 af/at PoE ports, the NVR powers and connects cameras directly without additional switching hardware in most deployments. This simplifies rack layout and reduces points of failure across installations where cameras are within standard cable run distances.
Dual Independent HDMI Outputs Including 8K
The primary HDMI output reaches 8K (7680×4320) at 30Hz, supporting ultra-high-resolution video walls or single large-format displays. The secondary HDMI output independently drives a second screen at up to 4K 60Hz, allowing a live monitoring console alongside a management workstation without signal splitting.
H.265+ Compression with 320 Mbps Incoming Bandwidth
H.265+ intelligent compression reduces storage and bandwidth consumption compared to H.264 while maintaining recording quality. The 320 Mbps incoming bandwidth handles high-resolution multi-channel streams without frame drops, even when several cameras are recording at peak quality simultaneously.
4-Bay Storage with eSATA Expansion
Four internal SATA bays each support surveillance drives up to 16TB, giving a potential internal capacity of 64TB. The additional eSATA interface allows connection of an external storage enclosure when retention requirements exceed the onboard bay count, useful for sites with compliance-driven footage retention obligations.
Best For
- Commercial Multi-Camera Sites: The 32-channel capacity and 24-port embedded PoE make this NVR well suited to shopping centres, office buildings, schools, and aged care facilities where camera counts regularly exceed 16 and dedicated switch racks are not practical.
- Rack-Mounted Server Room Deployments: The 1.5U 19-inch rack chassis fits standard equipment racks alongside networking gear, allowing a tidy and professional installation in IT rooms and comms cupboards.
- High-Resolution Camera Networks: Support for up to 32MP per channel means sites deploying multi-megapixel cameras for licence plate capture, entrance coverage, or wide-area monitoring can record and display footage at full sensor resolution.
- Dual-Monitor Control Rooms: Independent HDMI 1 and HDMI 2 outputs allow a video wall display and a separate operator console to run simultaneously, supporting staffed security monitoring environments without additional video distribution hardware.
Why Choose the DS-7732NI-M4/24P
The DS-7732NI-M4/24P stands apart from standard 32-channel NVRs through its combination of 8K HDMI output, dual independent display outputs, and 24 onboard PoE ports, features that typically require additional hardware in competing configurations. The H.265+ decoding engine handles up to 40 channels of 1080p at 30fps or 10 channels of 8MP simultaneously, providing the processing headroom needed when camera counts grow or resolutions increase post-installation. The 4-bay storage design, with each bay accepting drives up to 16TB, keeps long-term retention viable without requiring external NAS units in most commercial scenarios. The 1.5U rack form factor is compact enough for smaller comms rooms while delivering enterprise-level channel count and bandwidth. Available through Security Wholesalers, the DS-7732NI-M4/24P is supplied without HDDs, allowing integrators to specify WD Purple or Seagate Skyhawk surveillance-grade drives matched to the exact retention period required for each site.
Buyer Decision Tips
PoE Budget Planning: The 24 onboard PoE ports share a total power budget of up to 200W across all connected cameras. Before finalising your camera selection, add up the PoE draw of every planned camera. Cameras with IR illuminators or heaters draw more power than standard models. If your total camera load exceeds 200W, you will need to supplement with an external PoE switch for the higher-draw devices rather than relying solely on the NVR’s built-in PoE.
Ultra HD Mode Channel Limit: The DS-7732NI-M4/24P supports up to 32MP resolution recording, but enabling ultra HD resolution mode limits the NVR to 8 channels of 32MP or 24MP input rather than the full 32 channels. Plan your camera layout around this trade-off: if only a subset of cameras require ultra-high resolution, the remaining channels can still operate at standard resolutions in parallel. This makes the unit suitable for mixed-resolution deployments where only key positions require maximum detail.
Key Features & Technical Specifications
| IP Video Channels |
32 channels, up to 32MP per channel |
| Incoming Bandwidth |
320 Mbps |
| Outgoing Bandwidth |
400 Mbps |
| HDMI 1 Output |
8K (7680×4320)/30Hz, 4K (3840×2160)/60Hz, 2K (2560×1440)/60Hz, 1920×1080/60Hz |
| HDMI 2 Output |
4K (3840×2160)/60Hz, 2K (2560×1440)/60Hz, 1920×1080/60Hz |
| VGA Output |
1920×1080/60Hz, 1280×1024/60Hz, 1280×720/60Hz |
| Decoding Format |
H.265+, H.265, H.264+, H.264 |
| Decoding Capability |
2-ch@32MP (30fps) + 2-ch@8MP (30fps) / 10-ch@8MP (30fps) / 20-ch@4MP (30fps) / 40-ch@1080p (30fps) |
| Synchronous Playback |
16 channels |
| PoE Ports |
24 ports, IEEE 802.3 af/at, up to 200W total |
| HDD Bays |
4 x SATA, up to 16TB per drive |
| External Storage |
1 x eSATA interface |
| Alarm In/Out |
16 alarm inputs / 9 alarm outputs |
| USB Interfaces |
Front: 2 x USB 2.0; Rear: 1 x USB 3.0 |
| Network Interface |
1 x RJ-45 10/100/1000 Mbps self-adaptive Ethernet |
| Remote Connections |
Up to 128 |
| Chassis |
19-inch rack-mounted 1.5U, 445 x 400 x 75 mm, weight up to 5kg (without HDD) |
| Power Supply |
100 to 240 VAC, 50 to 60 Hz; consumption up to 15W (without HDD, PoE off) |
| Working Temperature |
-10°C to 55°C |
| HDD Included |
No HDD supplied |
Ideal Use Cases
Shopping Centres and Retail Complexes
With 32 channels and 24 embedded PoE ports, the DS-7732NI-M4/24P can connect and power cameras across a large retail floorplan, car park, and loading dock from a single rack-mounted unit, reducing the need for distributed switching infrastructure.
Schools and Educational Campuses
The 16-channel synchronous playback and 128 remote connection support allow multiple authorised staff and security personnel to review footage simultaneously, which is a practical requirement in educational environments where incident review involves multiple stakeholders.
Staffed Security Control Rooms
The dual independent HDMI outputs allow a large display showing a live camera grid alongside a separate operator terminal for event management, alarm review, and playback without sharing a single screen or requiring additional video distribution hardware.
Warehouses and Distribution Centres
High-ceiling warehouse environments benefit from multi-megapixel cameras that can cover wide aisles and loading areas. The DS-7732NI-M4/24P records at up to 32MP per channel, preserving the detail needed to identify individuals or read labels and barcodes in playback.
Corporate Office Buildings
Multi-floor office buildings with reception areas, lift lobbies, stairwells, car parks, and perimeter entrances can centralise recording on a single 32-channel unit installed in the building’s comms room rack, with remote access supported for up to 128 concurrent connections.
Choosing the Right Model
- Choose this model if: You need a rack-mountable 32-channel NVR with onboard PoE powering for up to 24 cameras, 8K display output, and the ability to record at resolutions up to 32MP without adding external switching infrastructure to every deployment.
- Choose a different model if: Your installation requires fewer than 16 channels, in which case a smaller NVR will be more cost-effective and appropriately sized. Similarly, if your site requires RAID storage redundancy for fault-tolerant recording, this unit does not support RAID and an alternative NVR with RAID capability would be more suitable.
- Choose a different model if: All cameras on the site are analogue or HD-over-coax (TVI/CVI/AHD), as this is an IP-only NVR and does not accept analogue video inputs directly. An XVR or hybrid recorder would be required for mixed analogue and IP environments.
FAQs
- Does the DS-7732NI-M4/24P come with hard drives included?
No. The DS-7732NI-M4/24P is supplied without hard drives. The 4 internal SATA bays accept surveillance-grade drives up to 16TB each, giving a maximum internal capacity of 64TB. Hikvision recommends surveillance-grade HDDs such as WD Purple or Seagate Skyhawk. These are available separately through Security Wholesalers in a range of capacities to match your required retention period.
- How many cameras can the built-in PoE ports power directly?
The DS-7732NI-M4/24P has 24 embedded PoE ports with a combined power budget of up to 200W, compliant with IEEE 802.3 af/at. The number of cameras powered depends on each camera’s individual PoE draw. Standard dome and bullet cameras typically draw 6W to 12W, meaning most 24-camera deployments will fit within the 200W budget. Cameras with high-draw features such as motorised lenses or IR arrays may require you to supplement with an external PoE switch.
- Can the NVR display footage on 2 monitors at the same time?
Yes. The DS-7732NI-M4/24P has 2 independent HDMI outputs. HDMI 1 supports up to 8K (7680×4320) at 30Hz and can operate simultaneously with the VGA output. HDMI 2 operates independently and supports up to 4K (3840×2160) at 60Hz, allowing a dedicated live view display and a separate management or playback monitor to run concurrently.
- What is the maximum resolution this NVR can record?
The DS-7732NI-M4/24P supports recording at up to 32MP per channel. When ultra HD resolution mode is enabled, the NVR supports up to 8 channels of 32MP or 24MP input simultaneously. Outside of ultra HD mode, all 32 channels operate at standard resolutions up to 12MP. The recording resolution range covers 32MP down to QCIF, accommodating a wide mix of camera specifications within the same system.
- How many channels can be played back simultaneously?
The DS-7732NI-M4/24P supports 16-channel synchronous playback. This means up to 16 camera streams can be reviewed at the same time during investigation or audit workflows, which is practical for multi-zone incident review without switching between camera groups manually.
- Is this NVR suitable for rack mounting in a server room?
Yes. The DS-7732NI-M4/24P uses a 19-inch rack-mounted 1.5U chassis measuring 445 x 400 x 75mm and weighing up to 5kg without drives. This form factor fits standard 19-inch equipment racks alongside networking gear, patch panels, and UPS units, making it appropriate for IT room and comms cupboard installations at commercial sites.
- Can external storage be added if the 4 internal bays are not enough?
Yes. The DS-7732NI-M4/24P includes 1 eSATA interface that supports connection to an external storage enclosure for capacity expansion beyond the 4 internal bays. This is useful for sites with regulatory or compliance requirements that mandate extended footage retention periods beyond what 4 drives alone can accommodate.
Additional Information
Hard Drives
