# Western Digital WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch 

- Category: Storage
- Brand: Western Digital
- Model: WD20PURX
- Part number: WD20PURX
- Price (US): $123.39
- Price last checked: 2026-08-05
- Rating: 4.6/5 from 2206 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/storage/western-digital-wd20purx/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Western Digital |
| Model | WD20PURX |
| Maximum Capacity | 2 TB |
| Form Factor | 3.5" (HDD) |
| Cache Memory | 64 MB |
| Interface | SATA 6 Gb/s |

## Key Features

- Engineered specifically for surveillance security systems
- Reduced video frame loss
- Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications
- Prioritized write-operations for maximized surveillance performance
- TLER & ATA streaming support.
- Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.
- Ships in WD-certified box for safe transit during shipping

---

Source: BuildMyPC (https://buildmypc.net/) — free PC parts compatibility checker. Prices update daily. As an Amazon Associate, BuildMyPC earns from qualifying purchases.