WD Red Pro 3.5" 20TB, 7200 RPM, 512MB, SATA III Hard Drive for NAS

The WD Red Pro WD201KFGX is an internal 3.5-inch hard drive providing 20 TB of storage capacity, specifically engineered for multi-bay Network Attached Storage (NAS) systems. Its architecture features a 7200 RPM spindle speed and a substantial 512 MB cache, which work together to deliver consistent data throughput. These components support the demanding read/write operations common in commercial network environments, ensuring efficient file access and data management.

Designed for high-availability systems, this HDD supports continuous 24/7 operation with a workload rating of 300 TB per year. It integrates rotational vibration (RV) sensors to protect data and maintain performance in vibration-prone, multi-drive enclosures. Further reliability is provided through end-to-end data protection and S.M.A.R.T. monitoring technology, which helps to proactively manage drive health and ensure data integrity over long-term use.

• Offers 20 TB of storage capacity
• 3.5-inch hard drive form factor
• Connects via a SATA 6 Gbit/s interface
• Operates at a 7200 RPM spindle speed
• Includes a 512 MB cache buffer
• Achieves read and write speeds up to 268 MB/s
• Rated for a workload of 300 TB per year
• Features a Mean Time Between Failures (MTBF) of 1,000,000 hours
• Consumes 3.8 W of power in idle mode
• Built for 24/7 operation in NAS environments
• Measures 101.6 x 147 x 26.1 mm and weighs 690 g