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Silver 3.5-inch enterprise hard drive with SAS connector and label showing 8TB capacity

Seagate

Seagate Exos 7E10 ST8000NM018B 8TB 7200 RPM 256MB SAS 12Gb/s 3.5" internal hard drive

SKU CH-8CH1-GT995 MPN ST8000NM018B

An 8TB enterprise hard drive with 7200 RPM, 256MB cache and SAS 12Gb/s interface for 24x7 bulk data storage

  • Total capacity8 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeHard Drive
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • 8TB capacity supports massive bulk-data workloads
  • 7200 RPM spindle speed delivers high-throughput performance
  • 256MB cache accelerates frequent data access
  • SAS 12Gb/s interface enables fast enterprise connectivity
  • 550TB yearly workload rating sustains 24×7 operation

Enterprise 8TB SAS drive

The Seagate Exos 7E10 ST8000NM018B is an 8TB 3.5-inch internal hard drive built for enterprise bulk-data workloads. It spins at 7200 RPM with a 256MB cache and connects via a SAS 12Gb/s interface. The drive is rated for 550TB of data written per year and a 2 million hour MTBF.

Suited for 24x7 arrays, not desktop PCs

This drive targets data-centre architects and IT teams running replicated or RAID storage that operates around the clock. It is not intended for single-drive desktop use, gaming rigs, or systems that lack a SAS controller and backplane.

Verify SAS controller and bay clearance

Confirm your host bus adapter or RAID card supports SAS 12Gb/s and the 512e/4Kn sector format. Ensure the 3.5-inch bay accommodates the 26.11mm height, 101.85mm width and 147.00mm length. Check that your firmware and cabling match the SAS specification.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $204.99
Pricier than about 70% of the 4,938 comparable items (median $107.99).
Total capacity 8 TB
Higher than about 80% of the 2,372 comparable items (median 2 TB).
Price per TB $25.62 per TB
Cheaper than about 88% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExos 7E10
Model nameST8000NM018B
Total capacity8 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Flash memory typeHard Drive
Cache memory256 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.11 mm
Maximum width101.85 mm
Maximum length147 mm
Shipping weight0.91 kg
Package size196 × 152 × 51 mm

Questions about this item

What controller or backplane do I need to connect the SAS 12Gb/s interface on this ST8000NM018B?

You need a SAS 12Gb/s HBA, RAID controller or backplane with compatible SAS ports and cables.

Will the 512e/4KN sector format on this 8TB drive work with my older RAID controller that only supports 512n?

The drive uses 512e/4KN formatting; compatibility depends on whether your controller explicitly supports 512e or 4KN logical sectors.

How can I confirm the 7200 RPM spindle speed and 256MB cache are active after installation?

Check the drive's reported RPM and cache size in your OS disk utility or controller BIOS; they should show 7200 RPM and 256MB.

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