- Description
- Specifications
Western Digital Ultrastar DC HC560 20TB SATA Data Center Hard Drive with OptiNAND Technology, Energy-Assisted Magnetic Recording, Triple-Stage Actuator, HelioSeal Helium, and CMR Format for Maximum-Capacity SATA Storage
The Western Digital Ultrastar DC HC560 WUH722020BLE6L4 (0F38785) is a 20TB helium-filled enterprise SATA hard drive that delivers 7200 RPM performance with OptiNAND technology, Energy-Assisted Magnetic Recording (EAMR), and a Triple-Stage Actuator (TSA) on a 9-disk platform achieving 2.2TB per platter in a standard 3.5-inch form factor. OptiNAND integrates an iNAND Universal Flash Storage embedded flash drive with the spinning disk media and enhanced firmware algorithms to offload metadata to flash, enabling higher tracks per inch and greater areal density while maintaining the CMR recording format that enterprise workloads require.
The SATA interface provides broad compatibility with server, NAS, JBOD, and NVR storage platforms running Windows, Linux, or Windows Server, making the HC560 SATA variant the choice for environments where dual-port SAS connectivity is not required but maximum capacity per drive bay is. The 20TB capacity on the 9-disk HelioSeal platform delivers the highest density available in the Ultrastar SATA lineup at the time of release, and the 512 MB buffer handles sustained mixed read/write workloads in 24/7 data center and surveillance recording environments. The 3.5-inch form factor at 4 x 5.8 x 1 inches fits standard server drive bays and storage enclosures.
Where the WD Ultrastar DC HC560 20TB SATA Fits
- Data center and cloud storage tiers using SATA infrastructure where the 20TB capacity maximizes terabytes per drive bay to reduce rack space, power, and cooling costs, the SATA interface provides drop-in compatibility with existing SATA storage controllers and backplanes, and the OptiNAND technology enables capacity gains through flash-enhanced firmware without requiring a platform change
- High-capacity NAS and NVR deployments where the 20TB per bay provides maximum recording time for video surveillance or maximum file storage for NAS environments, the CMR recording format delivers consistent write performance without the rewrite penalties of shingled recording, and the HelioSeal helium technology maintains lower power consumption and operating temperature in always-on enclosures
- Enterprise archive, backup, and bulk storage platforms where the 20TB capacity per bay directly reduces the total drive count needed per petabyte of raw storage, the EAMR and TSA technologies provide enterprise-grade reliability and positioning accuracy, and the compatibility with Windows, Linux, and Windows Server supports mixed-OS storage environments
What the WD Ultrastar DC HC560 20TB SATA Delivers
- 20TB OptiNAND Enterprise SATA: 20TB capacity with SATA interface. OptiNAND technology with integrated iNAND UFS flash. EAMR recording for higher areal density. CMR format. 9-disk platform at 2.2TB per platter.
- 7200 RPM with TSA: 7200 RPM spindle speed with 512 MB buffer. Triple-Stage Actuator for precise head positioning. Designed for sustained 24/7 enterprise and surveillance workloads.
- HelioSeal Helium Technology: Sealed helium environment for lower power consumption per terabyte. Reduced internal turbulence for consistent performance. Lower operating temperature in dense multi-drive enclosures.
- 3.5-Inch Form Factor: Standard 3.5-inch LFF chassis at 4 x 5.8 x 1 inches. Compatible with Windows, Linux, and Windows Server. Drop-in for server, NAS, JBOD, and NVR platforms.
