# Western Digital 14TB WD Red Plus NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5"

- Category: Storage
- Brand: Western Digital
- Model: WD140EFFX
- Part number: WD140EFFX
- Price (US): $789.45
- Price last checked: 2026-08-05
- Rating: 4.6/5 from 11919 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/storage/western-digital-wd140effx/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Western Digital |
| Model | WD140EFFX |
| Maximum Capacity | 14 TB |
| Form Factor | 3.5" (HDD) |
| Cache Memory | N/A |
| Interface | SATA 6 Gb/s |

## Key Features

- Available in capacities ranging from 1-14TB with support for up to 8 bays
- 5400RPM performance class
- Supports up to 180 TB/yr workload rate*| * Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours))
- NASware firmware for compatibility
- Small or medium business NAS systems in a 24x7 environment
- 3-year limited warranty

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