Dahua NVR5432-16HP-XI/Pro – 32 Channel WizMind AI Network Video Recorder with 16 PoE Ports (1.5U, 4 HDD Bays)
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Dahua NVR5432-16HP-XI/Pro – 32 Channel WizMind AI Network Video Recorder with 16 PoE Ports (1.5U, 4 HDD Bays)
The Dahua NVR5432-16HP-XI/Pro is a flagship intelligent network video recorder from Dahua’s WizMind XI/Pro series, engineered for large-scale, mission-critical surveillance environments such as smart cities, airports, industrial complexes, logistics hubs, and high-security facilities. It supports up to 32 IP camera channels and includes 16 integrated PoE ports, allowing direct camera connection without external switches, simplifying deployment and reducing installation complexity. The system supports ultra-high-definition video inputs up to 32MP resolution, ensuring exceptional clarity for forensic-grade surveillance and detailed monitoring. Powered by Dahua’s Xinghan large-scale AI model architecture, the NVR delivers advanced intelligent analytics including face detection and recognition, AcuPick smart search, WizSeek target retrieval, Smart Motion Detection (SMD), perimeter protection, video metadata analysis, and ANPR (automatic number plate recognition via compatible cameras). These AI capabilities significantly improve detection accuracy while reducing false alarms and enabling rapid search across large video datasets. A key advantage of the XI/Pro platform is its ability to perform AI processing on both recorder and camera sides, providing flexible system design and optimised performance distribution depending on installation requirements.
KEY FEATURES
- 32-channel IP camera support
- 16 integrated PoE ports (IEEE 802.3af/at)
- WizMind XI/Pro AI deep-learning platform
- Xinghan large-scale AI model processing
- Supports cameras up to 32MP resolution
- Face detection and face recognition
- AcuPick intelligent video search
- WizSeek smart target retrieval system
- Smart Motion Detection (SMD)
- Perimeter protection with advanced filtering
- Video metadata analysis (humans, vehicles, attributes)
- ANPR support via compatible AI cameras
- Up to 512 Mbps bandwidth (incoming/recording/outgoing)
- Decoding up to 40 × 1080p @ 30fps (AI-dependent)
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