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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

  • InterfaceSAS 12Gb/s
  • Capacity1TB
  • Cache128MB
  • Average Latency4.16ms
  • RPM7200 RPM
  • FeaturesDesign Small and Deliver BIG - 2.5-Inch Nearline Drive - Up

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.

Highlights

  • 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

Specifications

BrandSeagate
ModelST1000NX0333
InterfaceSAS 12Gb/s
Capacity1TB
Cache128MB
Average Latency4.16ms
RPM7200 RPM
FeaturesDesign Small and Deliver BIG - 2.5-Inch Nearline Drive
- Up to 2TB capacity in 15mm z-height, 2.5-inch form factor for space-constrained data centers
- Designed for high-density storage solutions requiring environmentally sound low power consumption and low weight for maximum storage efficiency
- Choose 12Gb/s SAS for high data integrity, scalability and fast data access or SATA 6Gb/s for economical nearline performance
- Third-generation, enterprise-class reliability for 24x7 environmental robustness
- Highest efficiency with over 50% improvement in watts/TB, and 18% sequential perf
UsageFor Enterprise Storage
Form Factor2.5"
Height (maximum)15mm
Width (maximum)70.10mm
Length (maximum)100.46mm
Shipping weight0.25 kg
Package size137 × 91 × 23 mm

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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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