Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
- SLC
$23.99
0.00030554BTC
In stock
Western Digital
Western Digital WD63PURZ Purple 6TB 5400 RPM 256MB SATA 3.5" internal hard drive
Surveillance-grade 6 TB CMR drive rated for 180 TB/yr workloads and up to 16 bays with AllFrame technology
- InterfaceSATA 6.0Gb/s
- Capacity6TB
- Recording TechnologyCMR
- RPM5400 RPM
- Cache256MB
- UsageFor Video Surveillance
- Optimised for video-surveillance workloads with AllFrame technology
- Sustains up to 180 TB per year write workload
- CMR recording ensures consistent streaming performance
- 256 MB cache smooths multi-camera data ingestion
- 5-inch form factor fits standard surveillance bays
6 TB SATA surveillance drive
The WD Purple WD63PURZ is a 3.5-inch internal hard drive built for mainstream video surveillance systems. It offers 6 TB of capacity using CMR recording technology and a 256 MB cache to handle continuous write workloads. The drive connects via a SATA 6.0 Gb/s interface and spins at 5400 RPM. It is intended for installers and system integrators who need reliable storage for multiple camera streams.
Thermals noise and power
Designed for always-on operation, the drive supports an annual workload rate of up to 180 TB per year. Tarnish-resistant components help maintain consistent performance in the warm, enclosed environments typical of network video recorders. The 5400 RPM spindle speed contributes to lower acoustic output and reduced power draw compared to faster desktop drives. These characteristics suit deployments where drives run continuously in multi-bay enclosures.
Build and mounting
The drive fits standard 3.5-inch bays with maximum dimensions of 147.00 mm length, 101.60 mm width and 26.10 mm height. It supports installations of up to 16 bays, allowing use in larger recorder chassis. The SATA data and power connectors are positioned for straightforward cabling in rack-mounted or desktop NVR units. Retail or OEM packing may vary, but the mechanical mounting points follow the industry standard pattern.
Highlights
- Optimised for video-surveillance workloads with AllFrame technology
- Sustains up to 180 TB per year write workload
- CMR recording ensures consistent streaming performance
- 256 MB cache smooths multi-camera data ingestion
- 5-inch form factor fits standard surveillance bays
Specifications
| Brand | WD |
|---|---|
| Series | Purple |
| Model | WD63PURZ |
| Interface | SATA 6.0Gb/s |
| Capacity | 6TB |
| Recording Technology | CMR |
| RPM | 5400 RPM |
| Cache | 256MB |
| Usage | For Video Surveillance |
| Form Factor | 3.5" |
| Height (maximum) | 26.10mm |
| Width (maximum) | 101.60mm |
| Length (maximum) | 147.00mm |
| Shipping weight | 0.54 kg |
| Package size | 203 × 152 × 32 mm |
Questions about this item
How do I install the WD63PURZ in a standard 3.5" drive bay and what step is often missed?
Mount the drive using four screws in a 3.5" bay, connect the SATA data and power cables, then enable AHCI mode in the system BIOS so the 6.0Gb/s interface negotiates correctly.
What maintenance does the WD63PURZ require over its service life in a surveillance array?
No scheduled mechanical maintenance is needed; monitor SMART attributes and ensure the 180 TB/yr workload rating is not exceeded, replacing the drive if reallocated sectors appear.
What limit appears first when the WD63PURZ runs continuous 24/7 recording?
The 180 TB per year workload rating is the first constraint; sustained writes beyond that level can reduce reliability before the 5400 RPM mechanical wear becomes a factor.
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