WUH722222AL5204

The WUH722222AL5204 is a 3.5-inch data-center hard drive in Western Digital’s Ultrastar DC HC570 family, listed on the manufacturer’s SAS 12Gb/s interface. The Ultrastar DC HC570 data sheet gives this model a formatted capacity of 22TB, 7200 RPM spindle speed, CMR recording, a 512 MB data buffer, workload handling of up to 550TB per year, a projected MTBF of 2.5M hours, 5-year limited warranty, and an operating temperature of 5° C to 60° C. The corresponding Western Digital frank/part number for this model is 0F48052, offered as Base (SE), no encryption. Sector format is Advanced Format (4Kn: 4096, 512e: 512).

Key figures

• Formatted capacity: 22TB; data buffer: 512 MB.
• Interface: SAS 12Gb/s; form factor: 3.5-inch.
• Spindle speed: 7200 RPM; recording technology: CMR.
• Workload: up to 550TB per year; projected MTBF 2.5M hours; operating temperature 5° C to 60° C.
• Warranty: 5-year limited warranty. Order model WUH722222AL5204 / part 0F48052 (Base (SE), no encryption).

Model and part number

This page is the customer-orderable model number WUH722222AL5204; the same drive is also carried in Western Digital’s inventory systems under the part number 0F48052. Both identify this one SAS 12Gb/s HC570 unit and are cross-referenced here so a quote can be matched by either code.

What this page does and does not state

All four Ultrastar DC HC570 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, the part number and the data-security option. 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 HC570 Data Sheet (©2022 Western Digital Corporation), md5 9cd84329d0d959293b0c3dbd19b5c164. 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 WUH722222AL5204 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.