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Silver 3.5 inch bare hard drive with exposed circuit board and SAS connector

HGST

HGST Ultrastar He8 HUH728080AL4204 8TB 7200 RPM SAS 12Gb/s 3.5" internal hard drive

SKU CH-BB7R-1QPX2

8TB helium-filled 3.5-inch SAS drive with 7200 RPM, 128MB cache and 12Gb/s interface for high-density server storage

  • PackagingBare Drive
  • InterfaceSAS 12Gb/s
  • Capacity8TB
  • RPM7200 RPM
  • Cache128MB
  • Average Seek Time8.5ms
  • 8TB capacity in a standard 3.5-inch form factor
  • Helium-sealed design delivers industry-best Watts-per-TB power efficiency
  • 7200 RPM and 128 MB cache for responsive server workloads
  • SAS 12 Gb/s interface matches next-generation data-centre speeds
  • 2M-hour MTBF rating backs long-term enterprise reliability

Enterprise 8TB helium drive

The HGST Ultrastar He8 HUH728080AL4204 is an 8TB 3.5-inch internal hard drive built on a second-generation helium platform. It spins at 7200 RPM with a 128MB cache and connects through a SAS 12Gb/s interface. The bare drive targets enterprise and data-centre environments where capacity density and power efficiency are paramount.

Suited for high-density arrays, not desktop PCs

This drive fits servers, cloud and hyperscale storage, and distributed file systems such as Ceph and Hadoop that demand high capacity per slot and low watts per terabyte. It is not intended for consumer desktops or workstations that lack SAS controllers or 12Gb/s backplanes, nor for builds needing SATA-only connectivity without an adapter.

8TB capacity with efficient headroom

The helium design delivers 33% more capacity than 6TB air drives while cutting idle power by 23% and improving power efficiency by 44% in watts per terabyte. Average seek time is 8.5ms and average latency 4.16ms, supporting sustained throughput in scale-out deployments. Workloads requiring higher IOPS or sub-millisecond latency will exceed what this mechanical drive can provide.

Points forts

  • 8TB capacity in a standard 3.5-inch form factor
  • Helium-sealed design delivers industry-best Watts-per-TB power efficiency
  • 7200 RPM and 128 MB cache for responsive server workloads
  • SAS 12 Gb/s interface matches next-generation data-centre speeds
  • 2M-hour MTBF rating backs long-term enterprise reliability

Caractéristiques

BrandHGST
SeriesUltrastar He8
ModelHUH728080AL4204 (0F23654)
PackagingBare Drive
InterfaceSAS 12Gb/s
Capacity8TB
RPM7200 RPM
Cache128MB
Average Seek Time8.5ms
Average Write Time9ms
Average Latency4.16ms
FeaturesIndustry's leading 8TB 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
Compared to 6TB air drives
- 33% more capacity
- 23% lower idle power
- 44% more power efficient (Watts/TB)
SATA 6Gb/s and SAS 12Gb/s
- 12Gb/s SAS provides compatibility with next gen data centers
2M hours MTBF rating & 5-year limited warranty
Secure erase & Self-Encrypting Drive (SED) options
Advanced format 4Kn and 512e models
Applications/Environments
- Enterprise and data center app
UsageIdeal for Servers
Form Factor3.5"
Height (maximum)26.1mm
Width (maximum)101.6(+/-0.25)mm
Length (maximum)147mm

Questions sur cet article

Does this 8TB SAS 12Gb/s drive need a SAS backplane or HBA to work in my server?

Yes, the HUH728080AL4204 uses a 12Gb/s SAS interface and must connect to a SAS controller or backplane; it will not operate on a SATA-only port.

Can I mix this helium-filled 7200 RPM drive with older 6TB air-filled drives in the same RAID array?

It fits the same 3.5-inch, 26.1mm-high bay and uses the SAS 12Gb/s interface, so it can share an array, though rebuild times will reflect the 8TB capacity and 8.5ms seek time.

How can I confirm the 128MB cache and 4.16ms average latency are active after installation?

Run the drive manufacturer's diagnostic utility or check SMART attributes; they will report the 128MB cache size and show latency figures consistent with the 4.16ms specification.

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