WUH722020BL5204

The WUH722020BL5204 is a 3.5-inch data-center hard drive in Western Digital’s Ultrastar DC HC560 family, listed on the manufacturer’s SAS 12Gb/s interface. The Ultrastar DC HC560 data sheet gives this model a formatted capacity of 20TB, 7200 RPM spindle speed, CMR recording, a 512 MB data buffer, a workload rating up to 550 TB/year, a projected MTBF of 2.5M hours, 5-year limited warranty, and an operating temperature of 5° to 60°C. The corresponding Western Digital frank/part number for this model is 0F38652, offered as Base (Sanitize Crypto Erase). Sector format is Advanced Format (4Kn: 4096, 512e: 512).

Key figures

• Formatted capacity: 20TB; data buffer: 512 MB.
• Interface: SAS 12Gb/s; form factor: 3.5-inch.
• Spindle speed: 7200 RPM; recording technology: CMR.
• Workload rating: up to 550 TB/year; projected MTBF 2.5M hours; operating temperature 5° to 60°C.
• Warranty: 5-year limited warranty. Order model WUH722020BL5204 / part 0F38652 (Base (Sanitize Crypto Erase)).

Model and part number

This page is the customer-orderable model number WUH722020BL5204; the same drive is also carried in Western Digital’s inventory systems under the part number 0F38652. Both identify this one SAS 12Gb/s HC560 unit and are cross-referenced here so a quote can be matched by either code.

What this page does and does not state

All six Ultrastar DC HC560 order codes share the capacity, spindle speed, buffer, recording technology, workload, reliability and warranty figures above — the data sheet prints them as common columns of one ordering table. What differs by code, and what is asserted only for this row, is the interface (SAS 12Gb/s), the model number and the part number. The MTBF is given by the manufacturer as a projected estimate, not a measured value. The manufacturer publishes no temperature-grade/qualification standard or lifecycle statement for this family, so none is claimed here.

Data source

Figures are taken from the manufacturer data sheet Ultrastar DC HC560 Data Sheet (©2022 Western Digital Corporation), md5 310f99946e4df097255e209308d66f79. This is a manufacturer data-sheet copy, so no public datasheet link is claimed and the external reference points to the manufacturer product page.

Who makes it

The WUH722020BL5204 is made by Western Digital Corporation, a United States–headquartered data storage company based in San Jose, California. © 2025 Western Digital Corporation or its affiliates.