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HGST 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
Western Digital

HGST 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

Bottom line: The HGST HGST Ultrastar 7K4000 4 TB 3.5" 7200 RPM SATA Internal ($199.91 on Amazon as of 2026-10-22 04:30 UTC): Full 4TB capacity in a standard 3.5-inch form factor; main trade-off: enterprise 7200 RPM drive runs louder than NAS or desktop models.

$199.91

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Buy on Amazon — $199.91 Compare to similar PC & gaming hardware

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-22. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Full 4TB capacity in a standard 3.5-inch form factor
  • ✓ 7200 RPM with 64MB buffer over SATA 6.0Gb/s
  • ✓ Rated 2 million hours MTBF for enterprise uptime
  • ✓ Backed by a 5-year limited warranty
  • ✓ 2nd-gen HelioSeal design proven by server and storage OEMs

Cons

  • ✗ Enterprise 7200 RPM drive runs louder than NAS or desktop models
  • ✗ Higher power draw and heat than 5400 RPM consumer drives
  • ✗ Ships bare/OEM with no mounting rails, cables, or retail packaging

Manufacturer description

HGST 7K4000 is the world's first 4TB 7200 RPM hard drive with 2.0 million hours MTBF specification and backed by a full 5-year warranty. Ultrastar 7K4000 represents the sixth-generation HGST 5-platter design, which has been field proven by top server and storage OEMs and Internet giants. Engineered for the highest quality, the Ultrastar 7K4000 is put through grueling design tests during development and must pass stringent ongoing reliability testing during manufacturing. Ultrastar 7K4000 delivers by reducing downtime, eliminating service calls and minimizing TCO

SpecPicks Verdict

SpecPicks scored HGST HGST Ultrastar 7K4000 4 TB 3.5" 7200 RPM SATA Internal… using a rating × review-volume × price-fit model applied to published specs and reviews across the PC & gaming hardware category. Western Digital's PC & gaming hardware lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for PC & gaming hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Industry's leading 4TB capacity in a standard 3.5-inch form factor
  • Industry's best Idle and Active power efficiency (Watts/TB)
  • Reliable, field-proven, 2nd generation HelioSeal process and 7Stac design
  • 2M hours MTBF rating & 5-year limited warranty
  • Advanced format 4Kn and 512e models

Full Specifications

BrandWestern Digital
ColorSilver
Model NameUltrastar 7K4000
Read Speed6 gigabytes_per_second
Form Factor3.5-inch
Media Speed6 gigabytes per second
Model Number0F14688
Built-In MediaInternal Hard Drive
Hard-Drive Size4 TB
Mfr Part Number0F14688
Number of Items1
Special FeaturePortable
Hardware PlatformPC
Installation TypeInternal Hard Drive
Compatible DevicesDesktop
Data Transfer Rate750 megabytes_per_second
Enclosure Materialaluminum or glass
Additional FeaturesPortable
Hard Disk InterfaceSerial ATA-600
Warranty Description5 year limited on parts

Ready to buy?

HGST 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 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $199.91

*Price sourced from Amazon.com. Last updated 2026-10-22. Price and availability subject to change.

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HGST 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
$199.91
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