HDD · SATA · 22TB
Seagate IronWolf Pro vs WD Ultrastar DC HC570 22TB
The price verdict
WD Ultrastar DC HC570 22TB has the lower cost per TB.
Price comparison, including shipping; not an overall reliability rating.
Compared drive
Seagate IronWolf Pro 22TB →$999.00
$45.41 / TB
Newprices last checked 2026-10-13 18:07 UTC
Buy on eBay →↓ Lower cost / TB
WD Ultrastar DC HC570 22TB →WUH722222ALE6L4
$650.00
$29.55 / TB
Usedprices last checked 2026-10-13 18:07 UTC
Buy on eBay →Some “Buy” links earn us a commission. Who pays us.
the short version
- ▸On today's best listings the WD Ultrastar DC HC570 22TB is 35% cheaper per terabyte ($29.55/TB vs $45.41/TB). Prices move — check the live table below.
- ▸The WD Ultrastar DC HC570 22TB is rated for 550 TB/yr of workload against 300 TB/yr for the Seagate IronWolf Pro 22TB — the difference between a nearline drive built for constant duty and one meant for lighter NAS cycles.
spec by spec
✓ marks the better value for each comparable specification.
| Spec | Seagate IronWolf Pro | WD Ultrastar DC HC570 |
|---|---|---|
| Cost per TB (today) | $45.41/TB | ✓$29.55/TB |
| Best total price | $999.00 | ✓$650.00 |
| Workload rating | 300 TB/yr | ✓550 TB/yr |
| Warranty | 5 years | 5 years |
| MTBF | 1.2M hours | ✓2.5M hours |
| Cache | 256 MB | ✓512 MB |
| Spindle speed | 7,200 RPM | 7,200 RPM |
| Recording | CMR | CMR |
| Form factor | 3.5" | 3.5" |
Specs are manufacturer figures for each family; prices are the cheapest in-stock listing found on the last ingest, including shipping. Used and refurbished listings may differ in firmware, sector size and remaining warranty — verify with the seller.
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