Description
Hikvision DS-7732NI-M4/24P 32-Channel 1.5U 24-PoE 8K NVR – 32MP, 320Mbps & 4 HDD
The Hikvision DS-7732NI-M4/24P is a professional 32-channel M-Series 8K Network Video Recorder designed for large residential, commercial and industrial IP CCTV systems requiring high camera capacity, extensive direct PoE connectivity, substantial recording bandwidth and expandable surveillance storage.
Supporting up to 32 IP cameras, the DS-7732NI-M4/24P incorporates 24 built-in PoE interfaces, allowing up to 24 compatible PoE cameras to connect directly to the recorder without requiring separate PoE switches.
With up to 32MP camera input, 320Mbps incoming bandwidth, 400Mbps outgoing bandwidth, true 8K HDMI output, powerful multi-channel decoding, four SATA HDD bays and 16-channel synchronous playback, this M-Series NVR provides a powerful recording platform for demanding professional CCTV installations.

Key Features
- 32-Channel IP Network Video Recorder
- Hikvision M-Series 8K NVR
- 24 × Built-In PoE Camera Ports
- Up to 32 IP Camera Inputs
- Up to 32MP Camera Resolution
- 320Mbps Incoming Bandwidth
- 400Mbps Outgoing Bandwidth
- True 8K HDMI Output
- HDMI 1 Up to 7680 × 4320 @ 30Hz
- HDMI 2 Up to 4K @ 60Hz
- Up to 10 × 8MP @ 30fps Decoding
- Up to 20 × 4MP @ 30fps Decoding
- Up to 40 × 1080p @ 30fps Decoding
- 16-Channel Synchronous Playback
- H.265+ Video Compression
- Dual-Stream Recording
- Dual HDMI Outputs
- VGA & CVBS Outputs
- 4 × SATA HDD Interfaces
- Up to 16TB Per HDD
- Up to 64TB Potential Internal Storage
- eSATA Interface
- 210W PoE Power Budget
- IEEE 802.3af/at PoE
- 16 Alarm Inputs / 4 Alarm Outputs
- Gigabit Ethernet
- Up to 128 Remote Connections
- Up to 8 IP Speakers
- USB 3.0
- RS-232 & RS-485
- POS Integration
- Hik-Connect Support
- ONVIF & RTSP Compatibility
- 19-Inch Rack-Mountable 1.5U Chassis
- Professional High-Resolution CCTV Recording
32 IP Camera Channels
The DS-7732NI-M4/24P supports:
Up to 32 IP Camera Inputs
making it suitable for large multi-camera surveillance installations.
Compatible cameras can include selected:
- Hikvision ColorVu Cameras
- Hikvision ColorVu 3.0 Cameras
- Hikvision AcuSense Cameras
- Hikvision DeepinView Cameras
- Hikvision ANPR Cameras
- Hikvision PTZ Cameras
- Hikvision Panoramic Cameras
- Hikvision Thermal Cameras
- Standard Hikvision IP Cameras
- Compatible Third-Party IP Cameras
Available intelligent functionality depends on the connected camera model and system configuration.
24 Built-In PoE Camera Ports
The major advantage of the /24P version is:
24 × Built-In PoE Camera Interfaces
These allow up to 24 compatible PoE cameras to connect directly to the recorder.
PoE – Power over Ethernet – allows compatible cameras to receive:
- Electrical Power
- Network Data
- Video
- Audio
- Intelligent Event Information
through compatible Ethernet cabling.
A typical direct camera connection is:
IP Camera → Cat5e/Cat6 Cable → NVR PoE Port
This provides a clean and straightforward professional CCTV installation architecture.
32 Channels / 24 PoE Ports
It is important to distinguish between the recorder's camera capacity and physical PoE interfaces.
Maximum IP Camera Capacity
32 Cameras
Built-In PoE Interfaces
24
Therefore, up to 24 compatible cameras can connect directly to the NVR.
To utilise the complete 32-camera recording capacity, the remaining:
8 Cameras
can be connected through suitable external network infrastructure such as compatible PoE network switches.
This makes the /24P version particularly attractive for larger installations because most cameras can connect directly to the recorder.
Why Choose 24 PoE Instead of 16 PoE?
Compared with the DS-7732NI-M4/16P, the DS-7732NI-M4/24P provides:
8 Additional Built-In PoE Camera Ports
For installations using more than sixteen cameras, this can reduce the requirement for external PoE switches and associated network infrastructure.
For example:
16-PoE Model with 24 Cameras
16 cameras can connect directly to the NVR.
8 cameras require external network/PoE infrastructure.
24-PoE Model with 24 Cameras
All 24 cameras can connect directly to the NVR.
This can simplify system design for larger CCTV installations.
210W PoE Power Budget
The recorder provides a total PoE power budget of up to:
210W
across its built-in PoE interfaces.
The PoE ports support:
IEEE 802.3af / 802.3at
Camera power requirements should be considered during system design, particularly where higher-powered cameras are being connected.
Up to 32MP Camera Input
The DS-7732NI-M4/24P supports recording resolutions including:
- 32MP
- 24MP
- 12MP
- 8MP / 4K
- 6MP
- 5MP
- 4MP
- 3MP
- 1080p
- Lower Supported Resolutions
When Ultra-HD Resolution Mode is enabled, the NVR supports up to eight 32MP / 24MP IP video inputs.
This provides excellent flexibility for professional systems combining different camera resolutions.
320Mbps Incoming Bandwidth
The recorder provides:
320Mbps Incoming Bandwidth
This high bandwidth is particularly important for larger CCTV installations using multiple high-resolution cameras.
Available incoming bandwidth is shared across connected camera streams.
System design should consider:
- Number of Cameras
- Camera Resolution
- Frame Rate
- Video Bit Rate
- Audio
- Compression
- Intelligent Functions
- Recording Configuration
400Mbps Outgoing Bandwidth
The recorder provides up to:
400Mbps Outgoing Bandwidth
supporting demanding local-network and remote-video applications.
Powerful Decoding Capability
The M-Series platform provides powerful high-resolution decoding.
Supported configurations include up to:
- 2 × 32MP @ 30fps + 2 × 8MP @ 30fps
- 10 × 8MP @ 30fps
- 20 × 4MP @ 30fps
- 40 × 1080p @ 30fps
This provides excellent local-display performance for professional multi-camera surveillance systems.
True 8K HDMI Output
One of the major features of the DS-7732NI-M4/24P is:
True 8K HDMI Video Output
HDMI 1 supports up to:
7680 × 4320 @ 30Hz
when connected to a compatible 8K display.
This is an important distinction from NVRs where very high megapixel specifications refer only to camera input.
The DS-7732NI-M4/24P genuinely supports an 8K local HDMI display output.
Dual HDMI Outputs
The NVR provides:
2 × HDMI Outputs
HDMI 1
Supports up to:
8K – 7680 × 4320 @ 30Hz
and:
4K – 3840 × 2160 @ 60Hz
HDMI 2
Supports up to:
4K – 3840 × 2160 @ 60Hz
When HDMI 1 is operating at 8K resolution, the maximum HDMI 2 output resolution may be limited according to the recorder's display configuration.
VGA Output
The recorder also provides VGA output supporting up to:
1920 × 1080 @ 60Hz
for compatible Full HD displays.
CVBS Output
The NVR includes:
1 × BNC CVBS Video Output
providing additional flexibility for compatible monitoring equipment.
Flexible Multi-Monitor Configuration
The combination of:
- HDMI 1
- HDMI 2
- VGA
- CVBS
provides flexible local-display options for professional surveillance environments.
This is particularly useful for:
- Security Control Rooms
- Reception Areas
- Warehouse Offices
- Commercial Monitoring Stations
- Industrial Security Rooms
16-Channel Synchronous Playback
The recorder supports:
16-Channel Synchronous Playback
allowing recorded footage from multiple cameras to be reviewed simultaneously.
This is particularly useful when investigating an event that has moved across several camera locations.
H.265+ Video Compression
Supported video compression formats include:
- H.265+
- H.265
- H.264+
- H.264
H.265+ can help reduce network bandwidth and surveillance storage requirements compared with older compression formats.
This is especially important for systems using large numbers of:
- 8MP / 4K Cameras
- 12MP Cameras
- 24MP Cameras
- 32MP Cameras
Dual-Stream Recording
The NVR supports:
Dual-Stream Recording
allowing different streams to be used according to recording, playback and remote-access requirements.
This can help optimise network performance and bandwidth utilisation.
Four HDD Bays
The DS-7732NI-M4/24P provides:
4 × Internal SATA HDD Interfaces
Four HDD bays provide substantial storage capacity for large high-resolution surveillance systems.
This is particularly valuable where the installation requires:
- High Camera Counts
- 8MP / 4K Recording
- Continuous Recording
- Longer Retention Periods
- Higher Frame Rates
- Audio Recording
Up to 16TB Per HDD
Current Hikvision specifications support:
Up to 16TB Per HDD
With four compatible 16TB surveillance hard drives installed, potential internal raw storage capacity is:
Up to 64TB
Actual recording retention depends on the installed HDDs and recording configuration.
eSATA Interface
The recorder also provides:
1 × eSATA Interface
for compatible external storage applications.
This provides additional storage flexibility for professional installations.
Storage Requirements
The appropriate surveillance HDD capacity depends on:
- Number of Cameras
- Camera Resolution
- Frame Rate
- Video Bit Rate
- H.265+ Compression
- Audio Recording
- Continuous or Event Recording
- Required Retention Period
Surveillance-rated hard drives are recommended for professional CCTV recording.
Intelligent Camera Integration
The NVR supports compatible camera-generated intelligent functions.
Depending on the connected camera, available features can include:
- Motion Detection
- Line Crossing Detection
- Intrusion Detection
- ANPR
- Heat Mapping
- People Counting
- Other VCA Events
The exact functionality depends on camera compatibility and system configuration.
Up to 8 IP Speakers
The recorder supports connection of up to:
8 Compatible IP Speakers
providing additional possibilities for network audio and security applications.
Potential applications include:
- Security Warnings
- Site Announcements
- Event-Linked Audio
- Remote Audio
- Perimeter Security
POS Integration
The DS-7732NI-M4/24P supports:
POS – Point of Sale Integration
POS information can be displayed with compatible:
- Live View
- Recorded Playback
and can support event-related recording and alarm functions.
This can be useful for:
- Retail Stores
- Supermarkets
- Service Counters
- Hospitality Venues
- Commercial Transaction Areas
Alarm Integration
The recorder provides:
16 × Alarm Inputs
and:
4 × Alarm Outputs
for integration with compatible external security equipment.
Potential devices include appropriately configured:
- Door Contacts
- Sensors
- Alarm Systems
- Warning Devices
- Other Security Equipment
Gigabit Ethernet
The NVR provides:
1 × RJ45 10/100/1000Mbps Gigabit Ethernet Interface
supporting:
- Remote Viewing
- Hik-Connect
- Camera Integration
- Network Management
- Remote Playback
- System Configuration
Up to 128 Remote Connections
The recorder supports up to:
128 Remote Connections
providing substantial network-access capacity for professional installations.
ONVIF & RTSP Compatibility
The NVR supports standard network-camera protocols including:
- ONVIF
- RTSP
This provides flexibility when integrating compatible third-party network cameras.
For maximum feature integration, compatible Hikvision cameras are recommended.
Hik-Connect Remote Access
When connected to the internet and correctly configured, compatible Hikvision remote-access functionality can provide:
- Live Camera Viewing
- Recorded Playback
- Event Notifications
- Multi-Camera Viewing
- Remote CCTV Monitoring
- System Management
Secure Video Transmission
The M-Series supports security features including:
Stream over TLS Encryption
for supported encrypted video transmission.
The recorder also supports double verification for playback and downloading, providing additional control over access to recorded footage.
USB Connectivity
The recorder provides:
- 2 × USB 2.0 Interfaces – Front
- 1 × USB 3.0 Interface – Rear
These can support compatible devices for:
- Video Export
- External Storage
- Configuration
- Mouse Control
RS-485 & RS-232
Professional interfaces include:
- 2 × RS-485
- 1 × RS-232
providing additional integration options for compatible security and control equipment.
1.5U Rack-Mountable Design
The DS-7732NI-M4/24P uses a professional:
19-Inch Rack-Mountable 1.5U Chassis
making it suitable for installation in:
- Communications Racks
- MDF Rooms
- Security Rooms
- Server Rooms
- Commercial CCTV Cabinets
- Control Rooms
Ideal for Large CCTV Installations
The DS-7732NI-M4/24P is particularly suitable for:
- Warehouses
- Factories
- Commercial Buildings
- Retail Centres
- Schools
- Industrial Facilities
- Large Offices
- Car Parks
- Storage Facilities
- Building Complexes
- Multi-Tenant Properties
- Large Residential Properties
- Multi-Area Surveillance Systems
Why Choose the 24-PoE M-Series?
The DS-7732NI-M4/24P combines:
32 Camera Channels + 24 Built-In PoE Ports + 320Mbps Bandwidth + 8K Output + Powerful Decoding + 4 HDD Bays
The 24-PoE configuration is particularly valuable for larger systems because it allows most cameras in a 32-camera installation to connect directly to the NVR.
This can reduce reliance on external PoE switches while maintaining room for future expansion.
Main Specifications
- Model: DS-7732NI-M4/24P
- Series: Hikvision M-Series
- Product Type: Professional 8K Network Video Recorder
- Chassis: 19-Inch Rack-Mountable 1.5U
- IP Camera Inputs: 32
- Built-In PoE Interfaces: 24
- PoE Standard: IEEE 802.3af / 802.3at
- PoE Power Budget: Up to 210W
- Maximum Camera Resolution: Up to 32MP
- Incoming Bandwidth: 320Mbps
- Outgoing Bandwidth: 400Mbps
- Recording Resolution: Up to 32MP
- Decoding: Up to 2 × 32MP + 2 × 8MP / 10 × 8MP / 20 × 4MP / 40 × 1080p
- Synchronous Playback: 16 Channels
- Video Compression: H.265+ / H.265 / H.264+ / H.264
- Dual-Stream Recording: Supported
- HDMI Outputs: 2
- HDMI 1: Up to 8K / 7680 × 4320 @ 30Hz
- HDMI 2: Up to 4K / 3840 × 2160 @ 60Hz
- VGA Output: Up to 1920 × 1080 @ 60Hz
- CVBS Output: 1 × BNC
- Audio Output: 1 × RCA
- Two-Way Audio: 1 × RCA
- SATA Interfaces: 4
- Maximum HDD Capacity: Up to 16TB Per HDD
- Potential Internal Storage: Up to 64TB
- eSATA: 1
- Network Interface: Gigabit Ethernet
- Remote Connections: Up to 128
- IP Speakers: Up to 8
- Alarm Inputs: 16
- Alarm Outputs: 4
- RS-485: 2
- RS-232: 1
- USB: 2 × USB 2.0 + 1 × USB 3.0
- Remote Viewing: Supported
- Hik-Connect: Supported
- POS: Supported
- ONVIF: Supported
- RTSP: Supported
- Application: Professional High-Resolution IP CCTV Recording
Ideal For
- Hikvision 8MP / 4K CCTV Systems
- High-Resolution CCTV Systems
- 24-Camera CCTV Systems
- Expandable 32-Camera CCTV Systems
- Large Commercial CCTV
- Warehouse Surveillance
- Factory CCTV
- Industrial Security
- Retail Centres
- Schools
- Large Offices
- Car Parks
- Building Complexes
- Control Rooms
- Professional Security Installations
- 8K CCTV Monitoring
- High-Capacity CCTV Recording
Benefits
- 32 IP camera channels
- 24 built-in PoE interfaces
- Only eight additional network channels required to reach 32 cameras
- Up to 32MP camera input
- 320Mbps incoming bandwidth
- 400Mbps outgoing bandwidth
- True 8K HDMI output
- Dual HDMI outputs
- Up to 10 × 8MP decoding
- Up to 40 × 1080p decoding
- 16-channel synchronous playback
- H.265+ compression
- Four HDD bays
- Up to 16TB per HDD
- Up to 64TB potential internal storage
- eSATA connectivity
- 210W PoE budget
- Up to eight IP speakers
- 16 alarm inputs / 4 alarm outputs
- Gigabit Ethernet
- Up to 128 remote connections
- POS integration
- ONVIF compatibility
- Hik-Connect remote access
- 1.5U rack-mountable design
- Professional high-resolution CCTV platform
The Hikvision DS-7732NI-M4/24P 32-Channel 1.5U 24-PoE 8K NVR is designed for demanding professional CCTV installations where a high camera count and extensive direct PoE connectivity are priorities.
Combining 32 IP camera channels, 24 built-in PoE ports, 320Mbps incoming bandwidth, true 8K HDMI output, up to 32MP recording, powerful multi-channel decoding and four HDD bays, the DS-7732NI-M4/24P provides a highly capable foundation for large residential, commercial and industrial Hikvision surveillance systems.

