HDD · SATA · 3TB
HGST Ultrastar 7K4000 vs Seagate Constellation ES.3 3TB
The price verdict
HGST Ultrastar 7K4000 3TB has the lower cost per TB.
Price comparison, including shipping; not an overall reliability rating.
↓ Lower cost / TB
HGST Ultrastar 7K4000 3TB →$50.00
$16.67 / TB
Usedprices last checked 2026-10-14 06:07 UTC
Buy on eBay →Compared drive
Seagate Constellation ES.3 3TB →$65.44
$21.81 / TB
Usedprices last checked 2026-10-14 06:07 UTC
Buy on eBay →Some “Buy” links earn us a commission. Who pays us.
the short version
- ▸On today's best listings the HGST Ultrastar 7K4000 3TB is 24% cheaper per terabyte ($16.67/TB vs $21.81/TB). Prices move — check the live table below.
spec by spec
✓ marks the better value for each comparable specification.
| Spec | HGST Ultrastar 7K4000 | Seagate Constellation ES.3 |
|---|---|---|
| Cost per TB (today) | ✓$16.67/TB | $21.81/TB |
| Best total price | ✓$50.00 | $65.44 |
| Workload rating | 550 TB/yr | 550 TB/yr |
| Warranty | EOL / seller only | EOL / seller only |
| MTBF | 2.5M hours | 2.5M hours |
| Cache | 64 MB | ✓128 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.