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Silver 2.5 inch enterprise hard drive with exposed circuit board

Seagate

Seagate ST1000NX0303 1TB 2.5" 7200 RPM 128MB SATA laptop hard drive

SKU CH-GCAE-TQ34P MPN ST1000NX0303

A 1TB 2.5-inch laptop drive spinning at 7200 RPM with 128MB cache and SATA 6.0Gb/s interface for enterprise storage

  • Total capacity1 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Flash memory typeHard Drive
  • Cache memory128 MB
  • Mean latency4.16 ms
  • 1TB capacity in a compact 2.5-inch form factor
  • 7200 RPM spindle speed for responsive data access
  • 128MB cache to accelerate read and write operations
  • SATA 6.0Gb/s interface for broad system compatibility
  • 15mm height fits space-constrained enterprise bays

Enterprise Nearline 2.5-Inch Drive

The Seagate ST1000NX0303 is a 1TB 2.5-inch hard drive spinning at 7200 RPM with a 128MB cache. It is built for enterprise storage arrays and high-density servers that demand 24x7 operation in a 15mm z-height form factor.

SATA 6.0Gb/s Interface and 15mm Bay Check

Confirm the host system provides a SATA 6.0Gb/s port and a drive bay that accepts a 15mm-high 2.5-inch device. The drive measures 100.46mm long and 70.10mm wide, so physical clearance must be verified before installation.

PowerChoice Idle Savings and 4KN Format

Enhanced PowerChoice options reduce power draw during idle periods, lowering watts-per-terabyte by over 50 percent. The 4KN sector format improves storage efficiency and data integrity for nearline workloads.

How it compares

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

Price $160.99
Pricier than about 80% 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 $160.99 per TB
Cheaper than about 64% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSeagate
Model nameST1000NX0303
Total capacity1 TB
Recommended useFor Enterprise Storage
Performance
Mean latency4.16 ms
Rotational speed7,200 RPM
Storage
Flash memory typeHard Drive
Cache memory128 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height15 mm
Maximum width70.1 mm
Maximum length100.46 mm
Shipping weight0.91 kg
Package size305 × 229 × 102 mm

Questions about this item

Does the drive ship with mounting screws, a SATA cable or a caddy, or must I buy those separately?

The drive is supplied as a bare 2.5 inch 15 mm unit; screws, cables and any mounting bracket are not included and must be sourced separately.

How do I decide between the 128 MB cache version and a smaller cache alternative?

This model provides 128 MB cache; if your workload benefits from larger write buffering for sustained sequential transfers, the 128 MB option is the one to choose.

What does the 7200 RPM rating mean for real-world throughput in a laptop?

The 7200 RPM spindle with 4.16 ms average latency and SATA 6.0 Gb/s interface delivers higher sustained sequential speeds than slower-spinning drives, suited to 24x7 enterprise workloads.

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