Hikvision DS-7732NXI-I4/S 32CH no-PoE 4SATA AcuSense 4K NVR 4-ch Deep-Learning
Hikvision DS-7732NXI-I4/S 32CH no-PoE 4SATA AcuSense 4K NVR 4-ch Deep-Learning
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Description
Description
Hikvision DS-7732NXI-I4/S(E) 32-Channel AcuSense 4K NVR
When you're managing dozens of cameras, is simply recording everything enough—or do you need a system that helps you find the moments that actually matter? The Hikvision DS-7732NXI-I4/S(E) combines up to 32 IP camera channels with AcuSense deep-learning analytics, high-resolution recording, facial recognition, and intelligent search capabilities. Instead of forcing you to manually sort through hours of surveillance footage, features such as human and vehicle classification, AcuSearch, and smart playback can make reviewing security events far more efficient. And with 256 Mbps incoming bandwidth, 4K video output, and extensive storage support, it's built for surveillance systems that need room to perform and grow.
Why Buyers Choose This Model
A large surveillance system can create a different problem: more cameras often means more footage, more alerts, and more time spent trying to figure out what actually happened. The DS-7732NXI-I4/S(E) is designed to help turn that volume of video into something easier to manage.
Buyers choose this model when they want the capacity of a 32-channel recorder without giving up intelligent analytics, high-resolution camera support, advanced search tools, or professional integration options.
Features That Make the Difference
Up to 32 IP Camera Channels — Protect More From One Recorder
Connect up to 32 IP cameras to one NVR, giving you the flexibility to cover entrances, parking areas, offices, hallways, warehouses, and other critical areas without needing a separate recorder every time your surveillance system expands.
AcuSense Human & Vehicle Analysis — Spend Less Time Chasing False Alarms
The NVR supports up to 4 channels of device-based perimeter protection with human and vehicle recognition. Instead of treating every movement as equally important, the system can distinguish people and vehicles during supported perimeter events, helping reduce unnecessary false alarms and making important activity easier to identify.
AcuSearch — Find Important Targets Faster
With compatible Hikvision AcuSense cameras and AcuSearch enabled, the NVR supports AcuSearch across all channels and can model up to 172,800 targets per day. So when you're trying to locate a particular person or vehicle, you have an intelligent search tool designed to reduce the time spent manually scanning through recordings.
Motion Detection 2.0 — Make Motion Alerts More Useful
Motion Detection 2.0 is supported by the NVR across all channels for Hikvision cameras. That gives larger installations a more intelligent way to work with motion events instead of relying only on traditional pixel-based movement alerts.
Advanced Facial Recognition — Search People, Not Just Timelines
The recorder supports face-picture comparison, human face capture, and face-picture search. It can perform up to 4-channel human face capture and up to 8-channel face-picture comparison from cameras, giving supported installations another way to investigate who appeared on the property.
Up to 50,000 Face Pictures — Build a Powerful Recognition Database
Create up to 16 face-picture libraries containing as many as 50,000 face pictures in total. For applications where identifying or searching for known individuals matters, this gives the system substantial capacity for organized facial-recognition data.
256 Mbps Incoming Bandwidth — Built for Large Camera Systems
With up to 256 Mbps of incoming bandwidth and 256 Mbps of outgoing bandwidth, the recorder is designed to handle substantial network-video traffic while supporting a large multi-camera installation.
Up to 32 MP Recording Support — Preserve More Visual Detail
The NVR supports recording resolutions up to 32 MP, including support for up to four 32 MP or 24 MP IP video inputs. That means your recorder doesn't have to become the limiting factor when selected areas require exceptionally high-resolution cameras.
4K HDMI Output — See Your System in High Resolution
HDMI 1 supports output up to 4K resolution at 60 Hz, helping you take advantage of high-resolution displays when monitoring live video or reviewing recorded evidence.
Flexible Multi-Monitor Output — Build a Better Monitoring Station
HDMI, VGA, and CVBS outputs give you multiple ways to configure your surveillance workstation. The recorder supports HDMI 1/VGA simultaneous output as well as HDMI 2/VGA independent output, giving professional installations greater flexibility when arranging displays.
H.265+ Compression — Keep More Video Without Wasting Storage
Hikvision's H.265+ compression can reduce storage requirements by up to 75%. For a system recording dozens of cameras, more efficient compression can make a meaningful difference in how effectively available hard-drive space is used.
Four SATA Interfaces — Give Your Recording System Room to Store
The detailed specification table provides four SATA interfaces with support for hard drives up to 16 TB each. That gives you substantial flexibility when designing retention around a larger camera count, higher recording resolutions, or longer recording periods.
16-Channel Synchronous Playback — Review Multiple Angles Together
The detailed specification table supports up to 16-channel synchronous playback. Instead of investigating an incident one camera at a time, you can review multiple viewpoints together and better understand how an event moved across the property.
Smart Search & Smart Playback — Get to Relevant Footage Faster
Smart search lets you select an area within recorded video, while smart playback is designed to improve playback efficiency. When something happens, the goal isn't simply to know that you recorded it—it's to be able to find the useful footage when you need it.
ANPR Support — Add Intelligent Vehicle Monitoring
With compatible cameras, ANPR functionality is supported across all channels. The system can work with plate information including plate number, plate color, and plate type, along with vehicle attributes such as brand, color, and vehicle type.
POS Integration — Connect Transactions With Video
POS information can be overlaid on live view and recorded playback, with support for POS-triggered recording and alarms. For retail environments, this gives you the ability to associate transaction activity with the corresponding surveillance footage when reviewing an incident.
Hik-Connect — Manage Your System More Conveniently
Hik-Connect support provides an easier way to manage network access to the surveillance system, helping you stay connected to the recorder without always needing to stand in front of it.
ONVIF & RTSP Support — More Integration Flexibility
Camera access support for ONVIF and RTSP, along with SDK and ISAPI support, gives installers additional flexibility when integrating the NVR into compatible surveillance environments.
Alarm I/O — Integrate Video With a Larger Security Solution
With 16 alarm inputs and 9 alarm outputs, the recorder can participate in a broader security setup rather than functioning only as a video-storage device.
What This Helps You Avoid
Imagine something happens on a property with 20 or 30 cameras. You know it was recorded—but now someone has to sit there opening cameras, changing timelines, and searching through hours of footage just to understand what happened.
Or perhaps the system generates so many motion events that important activity begins to look like just another notification. At that point, having more cameras hasn't necessarily made the property easier to manage—it may have simply created more information to sort through.
That's where the DS-7732NXI-I4/S(E) changes the experience. Human and vehicle analytics can help make perimeter events more meaningful, AcuSearch can help locate relevant targets on compatible cameras, facial-recognition tools give you additional ways to investigate people, and synchronous playback helps you reconstruct events across multiple views.
Add support for up to 32 cameras, high-resolution recording, substantial storage capacity, 4K display output, and efficient H.265+ compression, and you get a recorder designed not simply to collect video—but to make a large surveillance system easier to operate when the footage actually matters.
Ideal For
- Businesses requiring surveillance across many areas
- Warehouses and distribution facilities
- Commercial and office buildings
- Retail stores requiring POS video integration
- Parking areas and vehicle-monitoring applications
- Properties requiring facial-recognition capabilities
- Large residential or multi-building surveillance systems
- Security rooms requiring multi-monitor video output
- Installations that may expand toward as many as 32 IP cameras
Product capabilities and specifications are based on the supplied Hikvision DS-7732NXI-I4/S(E) datasheet. The model is specified for up to 32 IP camera inputs with deep-learning analytics, perimeter protection, and facial-recognition capabilities. :contentReference[oaicite:0]{index=0}
Current Hikvision product materials also emphasize the model's 32-channel capacity, AcuSense analytics, facial recognition, H.265+ compression, and high-resolution output as core capabilities. :contentReference[oaicite:1]{index=1}
Product Support & Shipping Details
Product Support & Shipping Details
We move quickly so you don’t have to wait, place your order before 3pm EST and it ships out the same day, with everything else going out the next business day. Most customers see their package in about 3 business days, giving you a smooth, predictable delivery experience.
For Support you’re never on your own with us. if something comes up, our U.S.-based support team is here to help you troubleshoot, set up, or get answers fast. We make sure you always know exactly what to do next so your product keeps working the way you need it to.
30 Day Returns & Money Back Guarantee
30 Day Returns & Money Back Guarantee
If the product isn’t the right fit, no worries—our 30-day money-back guarantee gives you the space to try it without the pressure. You can return it within 30 days as long as it’s in its original condition. And to keep things simple, you can start the return right from your account, no hassle, no long back-and-forth.
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Product Manuals, data sheets.
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Technical Specifications
Hikvision DS-7732NXI-I4/S(E) 32-Channel AcuSense 4K NVR
The Hikvision DS-7732NXI-I4/S(E) is a 32-channel AcuSense network video recorder designed for larger IP surveillance systems that need powerful recording, intelligent search, facial recognition, perimeter protection, and high-resolution video output.
With support for up to 32 IP camera inputs, 256 Mbps incoming and outgoing bandwidth, H.265+ compression, 4K HDMI output, and Hikvision deep-learning analytics, it provides a centralized platform for recording and reviewing security video across demanding residential, commercial, retail, and multi-camera installations.
Advanced functions include AcuSearch, Motion Detection 2.0, human and vehicle classification, facial recognition, compatible-camera ANPR, smart playback, POS integration, and support for high-resolution cameras up to 32 MP.
Key Features
- Up to 32-channel IP camera input.
- H.265+/H.265/H.264+/H.264 video compression formats.
- H.265+ compression can reduce storage requirements by up to 75%.
- Intelligent analytics powered by deep-learning algorithms.
- Up to 4-channel perimeter protection by the NVR.
- Human and vehicle recognition designed to reduce false alarms.
- Up to 4-channel facial recognition for video streams.
- Up to 8-channel face picture comparison from cameras.
- Up to 16 face-picture libraries containing up to 50,000 face pictures total.
- AcuSearch support across all channels when used with compatible Hikvision AcuSense cameras.
- AcuSearch modeling capacity of up to 172,800 targets per day.
- Motion Detection 2.0 across all channels for Hikvision cameras.
- ANPR support through compatible cameras across all channels.
- Vehicle attribute recognition including vehicle brand, color, and type.
- License plate attributes including plate number, color, and type.
- 256 Mbps incoming bandwidth.
- 256 Mbps outgoing bandwidth.
- Supports recording resolutions up to 32 MP.
- Supports up to four 32 MP/24 MP IP video inputs.
- HDMI output supporting up to 4K 3840 × 2160 at 60 Hz.
- Independent HDMI and VGA video-output capabilities.
- Dual-stream recording support.
- Smart search and smart playback functions.
- POS information overlay on live view and playback.
- POS-triggered recording and alarm support.
- Heat-map camera data recording and presentation.
- Up to 128 remote connections.
- Hik-Connect support for network management.
- ONVIF, RTSP, SDK, and ISAPI integration support.
- Alarm inputs and outputs for integration with external alarm devices.
- 19-inch rack-mountable chassis.
Intelligent Analytics
AcuSearch
Perimeter Protection
Facial Recognition
Motion Detection 2.0
ANPR
Devices and Servers
Video and Audio
Decoding and Recording
Recording, Playback and Smart Functions
Network
Auxiliary Interface and Storage
Physical Interfaces
General
Certifications
Accessories Found in the Datasheet
The datasheet contains an "Accessory" section on page 7, but no specific accessory models or accessory names are listed. No accessories have been added here to avoid inventing information not provided by Hikvision.
Ideal Applications & Common Uses
Based on the capabilities documented in the datasheet, this NVR is suited to applications such as:
- Large multi-camera surveillance systems: Up to 32 IP cameras can be connected to a single recorder.
- Commercial buildings and offices: Centralized recording with intelligent human and vehicle detection can help operators review activity more efficiently.
- Retail stores: POS information can be overlaid onto live and recorded video, with support for POS-triggered recording and alarms.
- Warehouses and industrial properties: Perimeter-protection analytics can be used with human and vehicle classification to monitor restricted areas.
- Properties requiring advanced video search: AcuSearch can help locate human and vehicle targets across compatible Hikvision AcuSense camera channels.
- Facial-recognition applications: Supports face capture, face-picture comparison, face search, and libraries containing up to 50,000 face pictures.
- Parking areas and vehicle monitoring: Compatible ANPR cameras can provide license-plate and vehicle-attribute analytics.
- Multi-monitor security stations: HDMI, VGA, CVBS, and independent video-output options support different monitoring configurations.
- High-resolution surveillance installations: Supports recording resolutions up to 32 MP and 4K HDMI display output.
- Rack-mounted security rooms: The NVR uses a 19-inch rack-mountable chassis for centralized surveillance installations.
Datasheet Notes
The supplied Hikvision datasheet contains several internal specification differences. They are preserved rather than silently corrected:
- The product title describes the recorder as a "1U" NVR, while the General specification table describes a 19-inch rack-mounted "1.5U" chassis.
- The Function section states "up to 2 SATA interfaces for HDD connection," while the detailed Auxiliary Interface specification lists 4 SATA interfaces.
- The Function section states 8-channel synchronous playback at up to 1080p, while the detailed specification table lists 16-channel synchronous playback.
- The Function section states one self-adaptive 10/100/1000 Mbps Ethernet interface, while the detailed Network specification lists two RJ-45 10/100/1000 Mbps Ethernet interfaces.
- The Function section also states "8 independent PoE network interfaces." However, the physical-interface diagram does not separately identify eight PoE ports.
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Frequently Asked Questions
The DS-7732NXI-I4/S(E) supports up to 32 IP camera inputs, making it suitable for surveillance systems requiring as many as 32 camera channels.
It supports H.265+, H.265, H.264+, and H.264 video compression. According to the datasheet, H.265+ compression can reduce required storage space by up to 75%.
The detailed specification table lists 4 SATA interfaces with support for up to 16 TB per disk. The datasheet's earlier Function section separately states "up to 2 SATA interfaces for HDD connection," so the supplied datasheet contains conflicting information regarding the number of SATA interfaces.
Yes. HDMI 1 supports resolutions up to 4K (3840 × 2160) at 60 Hz or 30 Hz. It also supports 2K (2560 × 1440) at 60 Hz and 1920 × 1080 at 60 Hz.
The NVR provides up to 4-channel, 2 MP perimeter-protection video analysis by the device using human and vehicle recognition to help reduce false alarms. It supports up to 12 perimeter-protection rules in total. Perimeter protection by compatible cameras is supported on all channels.
Yes. It supports face-picture comparison, human face capture, and face-picture search. The NVR supports up to 4-channel human face capture and up to 8-channel face-picture comparison from cameras. It can also maintain up to 16 face-picture libraries containing up to 50,000 face pictures in total.
When connected cameras support Hikvision AcuSense Technology and have the AcuSearch function enabled, the NVR supports AcuSearch across all channels. The datasheet states that it is capable of modeling up to 172,800 targets per day.
The NVR supports ONVIF Profile S/G through its API and lists ONVIF Version 2.5 and RTSP as camera access protocols. The supplied datasheet does not state that every third-party ONVIF camera or every camera feature is guaranteed to be compatible.
The DS-7732NXI-I4/S(E) supports recording resolutions up to 32 MP. The datasheet specifies support for up to 4-channel 32 MP or 24 MP IP video inputs, along with 16 MP, 12 MP, 8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 1080p, and lower recording resolutions.
The detailed specification table lists up to 16-channel synchronous playback. However, the earlier Function section of the supplied datasheet states 8-channel synchronous playback at up to 1080p resolution, so the datasheet contains conflicting playback specifications.

