Dahua NVR5432-XI – 32 Channel WizMind AI Network Video Recorder (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-XI – 32 Channel WizMind AI Network Video Recorder (1.5U, 4 HDD Bays)
The Dahua NVR5432-XI is a flagship-grade 1.5U network video recorder from Dahua’s WizMind AI series, built for large-scale, mission-critical surveillance environments requiring advanced analytics, high bandwidth processing, and flexible storage architecture. It supports up to 32 IP camera channels and is capable of handling camera resolutions up to 32MP, making it suitable for ultra-high-definition monitoring and forensic-grade video recording. The system delivers strong decoding performance, supporting up to 32 × 1080p @ 30fps, ensuring smooth multi-channel live view and playback. Powered by Dahua’s advanced AI engine, the NVR integrates intelligent functions such as face detection and recognition, perimeter protection, Smart Motion Detection Plus (SMD+), video metadata analysis, ANPR (number plate recognition), and AcuPick intelligent search. These features significantly improve detection accuracy and allow fast retrieval of relevant video footage. The NVR5432-XI also supports AI processing on both recorder and camera sides, enabling flexible deployment depending on system design. It is designed for environments such as smart cities, industrial complexes, transport infrastructure, and enterprise security networks where large-scale video analytics is required.
KEY FEATURES
- 32-channel IP camera support
- WizMind AI deep learning analytics platform
- Supports cameras up to 32MP resolution
- Face detection and face recognition
- AcuPick intelligent video search
- Smart Motion Detection Plus (SMD+)
- Perimeter protection with advanced filtering
- Video metadata analysis (people, vehicles, attributes)
- ANPR (automatic number plate recognition) support
- Up to 512 Mbps incoming/recording/outgoing bandwidth
- Decoding capability up to 32 × 1080p @ 30fps
- Smart H.265+ compression for reduced storage usage
- 4 × SATA HDD bays (up to 20TB per drive)
- iSCSI storage expansion support
- N+M clustering for redundancy
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