Searching for an HGST Ultrastar 7K4000 generally means replacing a specific older enterprise HDD or sourcing a matching legacy unit. The exact code, capacity and connector matter far more than a broad Ultrastar product label.
Match the HUS7240 family and the exact 2TB, 3TB or 4TB capacity. For SATA setups, verify the interface suffix and drive label rather than relying on an ambiguous 7K4000 title.
See current HDD listings ↓Current HGST Ultrastar Deals on Amazon 8
Only positively identified Ultrastar-family hard drives qualify. Compare true capacity, model number, seller condition and price per TB. Verified Amazon prices may change.
Potential percentage savings appear only when a fresh Amazon listing includes an independently identified reference price for the same ASIN. If Amazon does not provide a suitable reference price, we show no discount badge.
HGST Ultrastar 7K4000 HUS724040ALA640 (0F14688) 4TB 64MB 7200RPM SATA 6Gb/s 3.5in Internal Enterprise Hard Drive - 5 Year Warranty
4TB · 3.5-inch SATA · $48.25/TB
Condition: Not stated · Confirm seller warranty and interface.
HGST Ultrastar 7K4000 3TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive (Enterprise Grade) HUS724030ALA640 (0F19455) - 5 Year Warranty
3TB · 3.5-inch SATA · $61.67/TB
Condition: Not stated · Confirm seller warranty and interface.
HGST HUS724020ALE640 2TB 3.5-inch SATA 7.2K RPM Internal HDD (0F14685)
2TB · 3.5-inch SATA · $49.50/TB
Condition: Not stated · Confirm seller warranty and interface.
HGST Ultrastar 7K4000 4 TB 3.5" Internal Hard Drive - SATA - 7200 - 64 MB Buffer RPM 64MB 3.5IN 25.4MM 8.0 512N
4TB · 3.5-inch SATA · $48.75/TB
Condition: Not stated · Confirm seller warranty and interface.
HGST Ultrastar 7K4000 HUS724020ALE640 2 TB 3.5" Internal Hard Drive (0F14685) -
2TB · 3.5-inch SATA · $54.50/TB
Condition: Not stated · Confirm seller warranty and interface.
HGST Ultrastar 7K4000 4 TB 3.5" 7200 RPM SATA Internal Enterprise Hard Drive 64 MB Buffer 6.0Gb/s - HUS724040ALA640 / 0F14688 64 MB Cache 3.5-Inch Internal Bare or OEM Drives 0F14688
4TB · 3.5-inch SATA · $49.98/TB
Condition: Not stated · Confirm seller warranty and interface.
HGST Ultrastar 7K4000 2 TB 3.5" 7200 RPM SATA Internal Enterprise Hard Drive - HUS724020ALA640 / 0F14690 64 MB Cache 3.5-Inch Internal Bare or OEM Drives 0F14690
2TB · 3.5-inch SATA · $60.00/TB
Condition: Not stated · Confirm seller warranty and interface.
HGST Ultrastar HUS724040ALE640 (0F18567) 4TB 64MB 7200RPM SATA 6Gb/s 3.5in Internal Enterprise Hard Drive - 5 Year Warranty
4TB · 3.5-inch SATA · $56.25/TB
Condition: Not stated · Confirm seller warranty and interface.Why this advice makes sense
Compare real buying choices
| Choice | Best use | Check before buying |
|---|---|---|
| Exact family model | Replace a specified HGST disk | Match the full part number, interface and sector format |
| Refurbished offer | Lower initial cost when acceptable | Verify condition, power-on data, returns and seller warranty |
| Other enterprise HDD | Compare total cost for your capacity | Confirm controller/NAS fit and avoid assumed drop-in compatibility |
HGST Ultrastar buying details for this drive family
Practical details that matter when comparing exact HDDs, capacities and configurations.
Decode 7K4000 model numbers
The 7K4000 family includes model prefixes for 2TB, 3TB and 4TB. The vendor datasheet documents HUS724040ALE640 as an example 4TB SATA drive. A replacement search should begin with the specific original identifier.
A drive described only as Ultrastar 4TB could be a 7K6000 or another generation and cannot be assumed to carry the same firmware and sector format.
Matching a discontinued disk
Ask whether a seller is supplying the exact requested model, a compatible substitute or a generic capacity replacement. Those are different purchase scenarios with different levels of risk.
For RAID, enterprise appliances or proprietary servers, verify approved model lists and firmware requirements. Treat any compatibility claim as unproven until matched against your system.
Protect data during replacement
A used 7K4000 purchase should be tested before accepting it into a production array. Even if initial SMART checks pass, an older drive may fail after shipping or under rebuild stress.
Maintain a tested backup and make a migration plan that does not depend on recovering data from the replacement disk itself.
What happens if listings are limited?
An older Ultrastar model may have only a few legitimate offers on Amazon at any given time. Rather than display unrelated drives as exact matches, we keep the listing count honest and offer a manufacturer-model search as a separate action.
If no good exact replacement exists, evaluate an approved substitute and confirm its interface, sector format and condition before committing.
How we evaluate an offer
The price cards prioritize a correct part-number family, matching capacity and verifiable interface. Only offers returned by the site’s configured Amazon catalogue can show a verified price, and last-verified observations keep their original age.
We do not manufacture discounts, claim a laboratory test, or present used stock as new. An Amazon offer can change between verification and checkout.
More CloudZat enterprise HDD research
Existing Ultrastar and enterprise HDD guides stay in place and are linked for context.
Frequently asked questions
Is HGST Ultrastar the same as WD Ultrastar?
They are connected through Western Digital ownership and the continuation of the Ultrastar enterprise drive line. Check the exact generation and model code; the branding alone does not prove technical identity.
Can a SAS Ultrastar drive be used in a SATA-only NAS?
Usually not. SAS requires appropriate SAS-capable hardware, so check the appliance specifications and the full drive suffix before purchasing.
Is a refurbished HGST Ultrastar safe for important data?
A refurbished drive can be usable, but no single disk should be the only copy of important data. Review seller testing, return rights, SMART health and backups.
Does price per TB tell me which Ultrastar to buy?
Price per TB helps compare capacity cost, but interface, condition, formatted capacity, warranty and system fit are equally important.
Specifications and references
Manufacturer information is linked for configuration checks. CloudZat has not independently benchmarked these drives.
CloudZat may earn a commission from qualifying Amazon purchases. Prices and availability can change. Product recommendations are based on model identity, capacity, fit, and documented observations, not a claimed personal hardware test.