# Western Digital 18TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181PURP

- Category: Storage
- Brand: Western Digital
- Model: WD181PURP
- Part number: WD181PURP
- Price (US): $794.99
- Price last checked: 2026-08-05
- Rating: 4.5/5 from 355 Amazon reviews
- Warranty: 5 years
- Product page: https://buildmypc.net/component-details/storage/western-digital-wd181purp/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Western Digital |
| Model | WD181PURP |
| Maximum Capacity | 18 TB |
| Form Factor | 3.5" (HDD) |
| Cache Memory | 512 MB |
| Interface | SATA 6.0 Gb/s |

## Key Features

- Engineered with advanced capabilities needed for high-end smart video solutions
- High performance, reliability and workload capability for advanced AI-enabled recorders, video analytics appliances, deep-learning servers and cloud-based storage
- Supports up to 550 TB/yr workload rate**.
- Designed with tarnish-resistant components for harsh environments, and with additional robustness for multi-bay enclosures

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