Dahua NVR616H-64-XI 64-Channel WizMind AI Network Video Recorder with 16HDD Bays, RAID & 8K Output
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 NVR616H-64-XI 64-Channel WizMind AI Network Video Recorder with 16HDD Bays, RAID & 8K Output
The Dahua NVR616H-64-XI is part of the powerful WizMind XI series, built for large-scale, intelligent video surveillance systems. Supporting up to 64 IP camera channels, it delivers exceptional performance with a maximum incoming bandwidth of up to 1280 Mbps, ensuring smooth handling of multiple ultra-high-resolution video streams simultaneously. This NVR integrates advanced AI capabilities directly within the recorder, including face detection and recognition, video metadata analysis (humans, vehicles, non-motor vehicles), perimeter protection, SMD Plus, AcuPick smart search, crowd analysis, people counting, ANPR, heat mapping, and PPE detection. These features significantly improve security accuracy and operational efficiency, especially in complex environments. With support for cameras up to 32MP resolution, the system provides extremely detailed video capture. It also features advanced multi-channel decoding, supporting various combinations of high-resolution streams, including 4K and 1080p outputs. The device includes 16 SATA HDD bays, each supporting up to 20TB, providing massive storage capacity suitable for continuous recording in large deployments. It also supports RAID 0/1/5/6/10, ensuring data redundancy and system reliability.
KEY FEATURES
- Supports up to 64 IP camera channels
- Ultra-high 1280 Mbps incoming/recording bandwidth
- Advanced AI engine: Face detection & recognition, SMD Plus, AcuPick, ANPR, PPE detection
- Video metadata analytics for humans, vehicles, and non-motor vehicles
- Supports up to 32MP camera resolution
- 16 × SATA HDD bays, up to 20TB per HDD (massive storage capacity)
- RAID 0/1/5/6/10 support for data protection
- 8K HDMI output (7680 × 4320) for ultra-high-definition monitoring
- Multi-channel intelligent decoding (up to 1280 Mbps processing capacity)
- AcuPick smart search up to 64 channels
- N+M cluster and iSCSI storage expansion support
- Hot-swappable HDD design for maintenance without downtime
- Embedded Linux operating system for stability
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