Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
- SLC
$23.99
0.00030554BTC
In stock
Western Digital
Western Digital WD181PURP-Dup 18TB 7200RPM 512MB Cache SATA 6.0Gb/s 3.5" internal hard drive
High-capacity surveillance storage handling up to 32 AI streams and 550 TB/yr workload for advanced video analytics
- PackagingBare Drive
- InterfaceSATA 6.0Gb/s
- Capacity18TB
- NAND Flash Memory TypeHard Drive
- RPM7200 RPM
- Cache512MB
- 18 TB capacity for massive surveillance archives
- 7200 RPM with 512 MB cache for sustained multi-stream recording
- AllFrame AI technology supports up to 32 AI streams per drive
- 550 TB/yr workload rating for always-on reliability
- Tarnish-resistant design built for multi-bay enclosures
18 TB Purple Pro Surveillance Drive
This 18 TB 3.5-inch internal hard drive uses a SATA 6.0 Gb/s interface, spins at 7200 RPM and carries a 512 MB cache. It is engineered for always-on AI-enabled recorders, video analytics appliances, deep-learning servers and cloud-based storage that demand high capacity and sustained write performance.
Suits multi-bay AI video systems.
The drive supports up to 32 AI streams per drive for deep-learning analytics and is built with tarnish-resistant components for harsh environments and operational vibration in larger enclosures. Buyers who need storage for only a few cameras or who require a different interface should look at other options.
550 TB yearly workload with 32 AI streams
A 550 TB per year workload rating provides headroom for continuous high-bitrate recording and analytics across many channels. The 32-stream AI limit defines where deep-learning analytics capacity runs out, while the single SATA link sets the maximum sequential throughput ceiling.
Highlights
- 18 TB capacity for massive surveillance archives
- 7200 RPM with 512 MB cache for sustained multi-stream recording
- AllFrame AI technology supports up to 32 AI streams per drive
- 550 TB/yr workload rating for always-on reliability
- Tarnish-resistant design built for multi-bay enclosures
Specifications
| Brand | Western Digital |
|---|---|
| Series | Purple Pro |
| Model | WD181PURP |
| Packaging | Bare Drive |
| Interface | SATA 6.0Gb/s |
| Capacity | 18TB |
| NAND Flash Memory Type | Hard Drive |
| RPM | 7200 RPM |
| Cache | 512MB |
| Usage | For Video Surveillance |
| Form Factor | 3.5" |
| Shipping weight | 0.75 kg |
| Package size | 191 × 64 × 42 mm |
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