Brand: Western Digital · SKU: WD4000FYYZ-05UL1B0 · MPN: WD4000FYYZ-05UL1B0 · Category: Storage
The WD4000FYYZ-05UL1B0 is a Western Digital RE (RAID Edition) 4TB Enterprise SATA Hard Drive. It features a 4TB capacity, 7200 RPM spindle speed, 64MB cache, and a SATA 6Gb/s interface. This drive is designed for the fine balance between performance and reliability, making it ideal for bulk storage duties, JBODs, compute servers, video surveillance, and other demanding write-intensive applications in an enterprise environment. It utilizes Enhanced RAFF™ technology for vibration protection and has a high Mean Time Between Failures (MTBF) rating for 24x7x365 operation.
| MTBF | 1.2 million hours (stated in some sources), 1.4 million hours (stated in other sources) |
|---|---|
| Cache | 64MB |
| Capacity | 4TB |
| Interface | SATA 6Gb/s |
| Form Factor | 3.5-inch LFF |
| Workload Rating | Up to 550 TB per year |
| Rotational Speed | 7200 RPM |
| Sustained Transfer Rate | Up to 171 MB/s or 182 MB/s |
| Warranty | Varies by seller (e.g., 1 Year or 90 Days Refurbished, manufacturer warranty may be voided/not covered for refurbished units) |
| Weight | 1.66 lb / 0.75 kg (approx) |
| Dimensions | Height: 1.028 in (max), Length: 5.787 in (max), Width: 4.00 in (± .01 in.) |
The Western Digital RE WD4000FYYZ-05UL1B0 is a 4TB enterprise-class hard drive designed for high-capacity, high-performance, and high-reliability storage in datacenter and cloud environments. Key features include a 7200 RPM speed, SATA 6Gb/s interface, 64MB cache, and enterprise build quality with enhanced vibration protection to ensure durability in multi-drive systems.
Yes, this Western Digital RE 4TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive (WD4000FYYZ-05UL1B0) is 100% genuine Western Digital hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Western Digital RE 4TB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the WD4000FYYZ-05UL1B0.