Dahua NVR5864-XI/Pro – 64 Channel WizMind AI Network Video Recorder (2U, 8 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 NVR5864-XI/Pro – 64 Channel WizMind AI Network Video Recorder (2U, 8 HDD Bays)
The Dahua NVR5864-XI/Pro represents the highest tier of Dahua’s WizMind XI/Pro Series, delivering enterprise-class performance, intelligent analytics, and large-scale storage capabilities for demanding security environments. Supporting up to 64 IP camera channels with resolutions of up to 32MP, the recorder is engineered for applications such as airports, smart cities, transportation hubs, industrial facilities, educational campuses, and critical infrastructure projects. It combines powerful recording capabilities with advanced AI processing to enhance operational efficiency and security management. Powered by Dahua’s Xinghan Large-Scale AI Models, the NVR provides intelligent features including face detection and recognition, perimeter protection, Smart Motion Detection (SMD), video metadata analysis, AcuPick intelligent search, WizSeek smart retrieval, and text-defined alarming. These technologies significantly reduce false alarms while enabling rapid identification of people, vehicles, and events across extensive video archives. The recorder supports up to 40 channels of 1080p decoding at 30fps, providing smooth live viewing and playback across multiple monitors. An 8K HDMI output ensures ultra-high-definition display capability for control rooms and security operation centres.
KEY FEATURES
- Supports up to 64 IP camera channels
- Compatible with cameras up to 32MP resolution
- Xinghan Large-Scale AI Model technology
- Face detection and face recognition
- AcuPick intelligent video search
- WizSeek smart target retrieval
- Smart Motion Detection (SMD)
- Perimeter protection with AI classification
- Video metadata analysis
- Text-defined alarming
- ANPR support via compatible AI cameras
- Up to 512 Mbps incoming and recording bandwidth
- Up to 40 × 1080p @ 30fps decoding capability
- 8K HDMI output
- Smart H.265+, H.265, Smart H.264+, H.264 and MJPEG compression
- 8 SATA HDD bays supporting up to 20TB each
- RAID 0/1/5/6/10 support
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