Choose the right Western Digital Hard Drive
How to choose the right WD Hard Drive
WD is one of the most prestigious brands in the IT world. For decades, they’ve offered a wide range of hard drives for everyone from casual users to professionals and enthusiasts. For ease of reference and choice, WD sorts their hard drives by color.
| Energy efficient, quiet operation | Everyday Use | Max Performance, 24/7 | Data Centers | Security Systems |
| 80 GB - 1 TB | 500 GB - 3 TB | 500 GB - 4 TB | 1 TB - 3 TB | 1 - 4 TB |
| SATA 6 GB/s PATA 100 MB/s | SATA 6 GB/s | SATA 6 GB/s | SATA 6 GB/s | SATA + GB/s |
| 8 MB - 64 MB | 64 MB | 64 MB | 64 MB | 64 MB |
WD Green
Green WD drives take a responsible approach to life and the environment. They are quiet and energy-efficient, minimizing their impact on the environment and your wallet. Especially suitable for low-energy Home Theater PC (HTPC) setups.
WD Blue
Stable performance and reliability for everyday use – perfect for office or personal use. These drives will last for years, providing solid performance and economical storage. Ideal for standard PC use (Internet, photos, documents, video).
WD Black
Performance without compromise – WD’s Black series of hard drives is for the most demanding users and maximum performance builds. These drives are suited for in-house servers, graphic/video workstations, and the best gaming setups.
WD Black2 dual-disk drives safely store your data with a high-end 5-year warranty, while delivering powerful performance. This series is a reflection of years of the passion and innovation of WD’s engineers, and has been tested with demanding stress tests over long periods of time to ascertain their superiority.
WD Red
Red Edition WD hard drives are specifically designed for use on NAS devices for homes and small offices. In testing these hard drives met the strictest standards and certification to ensure compatibility with an extensive list of hardware & software partners. Special NAS-ware 2.0 firmware provides better reliability and data protection in case of a power outage. 
WD Purple
For home security systems, Purple AllFrame is a unique technology that provides a reliable home security system with excellent reliability, perfect for the home or small to medium enterprises. WD Purple receives exclusive firmware updates, and prevents the degradation of video quality and data outages that may occur with older security systems..