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

Seagate

Seagate ST2000NX0263 2TB 2.5" 7200 RPM SAS 12Gb/s 128MB Cache Internal Hard Drive

SKU CH-7BDJ-BQ057 MPN ST2000NX0263

A 2.5-inch SAS drive delivering 2TB at 7200 RPM with 128MB cache for high-density enterprise storage

  • Total capacity2 TB
  • Interface typeSAS 12Gb/s
  • Form factor2.5 in (6.35 cm)
  • Cache memory128 MB
  • Mean latency4.16 ms
  • Rotational speed7,200 RPM
  • 2TB capacity fits space-constrained racks with 2.5-inch 15mm form factor
  • 7200 RPM spindle and 128MB cache accelerate sequential workloads by 18%
  • SAS 12Gb/s interface delivers 12Gb/s transfer rate for enterprise arrays
  • Third-generation design rated for 24x7 operation with 4.16ms average latency
  • Low power profile cuts watts-per-TB by over 50% versus prior generation

Enterprise 2.5-inch SAS drive

The Seagate ST2000NX0263 is a 2TB 2.5-inch hard drive spinning at 7200 RPM with a SAS 12Gb/s interface and 128MB cache. It targets enterprise storage arrays and servers that need high-capacity nearline storage in a compact 15mm z-height form factor.

SAS 12Gb/s interface limits

The SAS 12Gb/s interface provides a 12Gb/s transfer rate, but sustained throughput is bounded by the 7200 RPM rotational speed and 4.16ms average latency. Sequential performance gains of 18% over the previous generation apply only to comparable nearline workloads, not random I/O patterns.

Installation and common issues

The 2.5-inch form factor with 15mm height fits standard enterprise drive bays and backplanes using SAS connectors. Installation fails when the backplane or controller does not support 12Gb/s SAS signalling, or when the 15mm z-height exceeds the bay clearance in some dense 2.5-inch chassis.

How it compares

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

Price $245.99
Pricier than about 76% of the 4,938 comparable items (median $107.99).
Total capacity 2 TB
Typical for this category: the median of 2,372 items is 2 TB.
Price per TB $123.00 per TB
Pricier than about 68% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Model nameST2000NX0263
Total capacity2 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 weight0.20 kg
Package size140 × 102 × 15 mm

Questions about this item

Should I choose the 2TB 2.5-inch SAS model or a larger capacity for my storage array?

The ST2000NX0263 provides 2TB in a 15mm 2.5-inch form factor, designed for high-density enterprise storage where space is constrained.

What does the 7200 RPM speed mean for actual throughput in my server?

The 7200 RPM spindle with 4.16ms average latency delivers 18% better sequential performance over the previous generation, suited for nearline workloads.

How does the SAS 12Gb/s interface limit real-world transfer rates?

The SAS 12Gb/s interface caps the maximum burst transfer rate at 12Gb/s, while sustained throughput depends on the 7200 RPM mechanics and 128MB cache.

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