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Silver 2.5-inch enterprise hard drive with SAS connector, 15mm thick

Seagate

Seagate ST1000NX0333 1TB 2.5" SAS 12Gb/s 7200 RPM 128MB laptop hard drive

SKU CH-B0D3-PNF97 MPN ST1000NX0333

A 2.5-inch 1 TB enterprise hard drive with a 12 Gb/s SAS interface, 7200 RPM speed and 128 MB cache for high-density storage

  • Total capacity1 TB
  • Interface typeSAS 12Gb/s
  • Form factor2.5 in (6.35 cm)
  • Cache memory128 MB
  • Mean latency4.16 ms
  • Rotational speed7,200 RPM

Capacity 1TB

  • Enterprise-class reliability for 24x7 operation backed by third-generation design
  • High-density storage in 15mm z-height 2.5-inch form factor fits space-constrained data centers
  • Low power consumption with over 50% improvement in watts per TB reduces operating costs
  • Fast data access via SAS 12Gb/s interface with 128MB cache and 7200 RPM
  • Enhanced system availability through improved rotational vibration tolerance and head micro-actuation

Enterprise 1TB SAS drive

The Seagate ST1000NX0333 is a 2.5-inch enterprise hard drive with a 12Gb/s SAS interface, 1TB capacity and 128MB cache. It spins at 7200 RPM with an average latency of 4.16ms and fits a 15mm z-height for high-density server and storage arrays.

Who it suits and who it does not

This drive suits administrators deploying nearline storage in 2.5-inch bays that accept a 15mm height and provide a SAS 12Gb/s host connection. It is not for systems that only accommodate thinner drives, nor for hosts lacking a SAS controller or backplane.

Deciding specification

The SAS 12Gb/s interface is the single specification that determines whether this drive can be installed; the host must support 12Gb/s SAS signalling for the drive to function.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $153.99
Pricier than about 79% of the 645 comparable items (median $66.99).
Total capacity 1 TB
Higher than about 90% of the 419 comparable items (median 320 GB).
Price per TB $153.99 per TB
Cheaper than about 67% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSeagate
Model nameST1000NX0333
Total capacity1 TB
Recommended useFor Enterprise Storage
Performance
Mean latency4.16 ms
Rotational speed7,200 RPM
Storage
Cache memory128 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height15 mm
Maximum width70.1 mm
Maximum length100.46 mm
Shipping weight0.25 kg
Package size137 × 91 × 23 mm

Other versions of this model

1 more in the same range

Questions about this item

How do I install the 2.5-inch 15mm SAS drive in a laptop bay, and what step is often missed?

Mount the drive using the 70.10mm by 100.46mm screw pattern, connect the SAS 12Gb/s data and power cables, then ensure the backplane or HBA is configured for 12Gb/s link speed — many builders leave it at 6Gb/s by default.

What maintenance or replacement will the 7200 RPM nearline drive need during its service life?

The drive is sealed with no user-serviceable parts; plan to replace the unit once its rated workload or error-rate thresholds are reached, and keep firmware current via the SAS interface to maintain 24x7 reliability.

What limit appears first when the 1TB drive runs sustained writes at 7200 RPM?

The 128MB cache absorbs bursts, but continuous streaming hits the mechanical throughput ceiling of the 7200 RPM platters before the SAS 12Gb/s bus saturates, so sustained throughput settles at the media rate.

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