Western Digital 4 TB WD4000FDYZ RE SATA III 3.5" Enterrise Hard Drive from WD is a powerful combination of enterprise-class performance and high capacity required for superior performance computing and business critical environments. The hard drive delivers transfer rates of up to 6 Gbps and high random I/O rates. It is coupled with a dual processor, which provides twice the processing power to maximize performance. The WD RE SATA Hard Drive's enhanced RAFF technology monitors the drive and corrects both linear and rotational vibration in real-time. It thus provides optimum performance even in high vibration environments. It features a head positioning system with two actuators which improves positional accuracy over the data track(s). The featured motor shaft on both ends minimizes the system-induced vibration and stabilizes platters. This enables accurate tracking of read and write operations. The multi-axis shock sensor feature automatically detects the subtlest shock events allowing you to protect the data.


Industry's highest capacity nearline drive - WD RE SATA hard drives are available in capacities 4 TB to suit even the most demanding storage needs Highest performance for business-critical applications - WD RE delivers 6 Gb/s transfer rates, sustained sequential data rates of 171 MB/s and high random I/O rates

Designed for quality and reliability - With a field-tested 1.2 million hour MTBF, this high performance drive delivers the highest level of reliability for 24x7 operation in up to 100% duty cycle applications Dual processor - Twice the processing power to maximize performance

• 4TB, 64MB Cache, 7200RPM SATA III, Enterprise Hard Drive
• Enterprise Grade 3.5" Hard Drive (Designed for 24/7/365, Heavy Duty)
• Works for NAS, RAID, Backup Storage, Server, PC/Mac, Security CCTV DVR
• Passed Factory Diagnostic Software + RE-CERTIFIED by State-of-the-Art software - Full "Sector-by-Sector" test to ensure best HDD quality! ZERO Bad Sectors!
• Worry Free Return! 100% Full Refund

4TB, 64MB Cache, 7200RPM SATA III, Enterprise Hard DriveWestern Digital