Western Digital Ultrastar DC HC550

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3 of 3 models

Clear filtersCapacities in decimal TB

Drive / exact model	Capacity	Interface	Use	Details
WUH721814ALE6L4Western Digital Ultrastar DC HC550SATA 6 Gb/s · Enterprise	14 TB	SATA 6 Gb/s	Enterprise	View model →
WUH721816ALE6L4Western Digital Ultrastar DC HC550SATA 6 Gb/s · Enterprise	16 TB	SATA 6 Gb/s	Enterprise	View model →Amazon US linked
WUH721818ALE6L4Western Digital Ultrastar DC HC550SATA 6 Gb/s · Enterprise	18 TB	SATA 6 Gb/s	Enterprise	View model →Amazon US linked
No models match these filters. Try a different capacity or clear the filters.

These HC550 entries are SATA base models with the legacy Pin 3 configuration. SAS, encryption and Power Disable variants use different suffixes; compare the entire model number.
Source: Western Digital Ultrastar DC HC550 datasheet, pages 2. Reviewed 2026-09-07.

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