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Silver 3.5 inch SAS hard drive bare drive label visible

Seagate

Seagate ST1000NM001A 1TB 7200RPM 256MB SAS 3.5 internal hard drive

SKU CH-S0C4-PB99Z MPN ST1000NM001A

Enterprise 1 TB SAS hard drive spins at 7200 RPM with 256 MB cache for 24/7 bulk data storage

  • Total capacity1 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeOthers
  • Rotational speed7,200 RPM

Model 1TB Standard Model

  • 1TB capacity for bulk data storage
  • 7200 RPM spindle speed for responsive access
  • 256MB cache to accelerate read and write operations
  • SAS 12Gb/s interface for high-throughput enterprise connectivity
  • 5-inch form factor fits standard desktop drive bays

Enterprise Bulk Storage

The Seagate Exos 7E8 ST1000NM001A is a 1TB 3.5-inch internal hard drive built for enterprise bulk data applications. It spins at 7200 RPM with a 256MB cache and connects through a SAS 12Gb/s interface. The bare drive uses conventional magnetic recording technology optimised for 247 operation in data centre infrastructures.

Target Environment

This drive suits IT professionals and data centre architects who need reliable, high-capacity storage for unstructured data workloads. Buyers who require a different interface protocol or a smaller physical form factor should look at other product lines. The SAS connection demands a compatible controller or backplane for installation.

Deciding Specification

The SAS 12Gb/s interface is the single specification that determines whether this drive fits the target system. Only platforms with native SAS support or appropriate host bus adapters can communicate with this unit. Verify controller compatibility before purchase to ensure the drive will function in the intended enclosure.

How it compares

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

Price $108.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $108.99 per TB
Pricier than about 65% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExos 7E8
Model nameST1000NM001A
Total capacity1 TB
Performance
Rotational speed7,200 RPM
Mean latency12Gb/s
Storage
Flash memory typeOthers
Cache memory256 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.91 kg
Package size254 × 203 × 152 mm

Other versions of this model

1 more in the same range

Questions about this item

How does the 7200 RPM spindle speed affect sustained write performance?

The 7200 RPM rotation provides consistent throughput for bulk data workloads, supported by a 256MB cache to absorb write bursts during 247 operations.

What is the typical power draw and noise level when the Exos 7E8 runs continuously?

Designed for 247 enterprise duty, the drive balances power consumption and acoustics for rack-mounted arrays, though exact watts and decibels vary by workload.

Does this SAS 12Gb/s drive need a specific controller or backplane to operate?

Yes, it requires a SAS 12Gb/s host bus adapter or RAID controller and a 3.5-inch drive bay with SAS power and data connectors.

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