WD RE SAS 4 TB Enterprise Hard Drive: 3.5 Inch, 7200 RPM, SAS, 32 MB Cache - WD4001FYYG
WD RE SAS hard drives are engineered to offer data-hungry SAS storage systems the massive capacity they need without compromising top-of-the-line performance. Advanced reliability and data integrity features allow for 24x7 operation in tightly packed vibration prone multi-drive systems. This uncompromising combination of high-capacity, peak performance and best-in-class reliability make WD RE SAS drives, ideal for mission critical applications.