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Silver 2.5-inch SAS hard drive with 15mm height

Seagate

Seagate ST1000NX0323 1TB 2.5" SAS 12Gb/s 7200 RPM 128MB laptop hard drive

SKU CH-2TKV-JYMH9 MPN ST1000NX0323

1 TB, 2.5-inch SAS 12Gb/s drive at 7200 RPM with 128 MB cache for enterprise 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
  • 1TB capacity fits space-constrained servers
  • SAS 12Gb/s interface enables fast data access
  • 7200 RPM spindle speed reduces average latency to 4.16ms
  • 128MB cache improves burst throughput
  • 15mm 2.5-inch form factor maximises storage density

Enterprise 2.5-inch SAS drive

The Seagate ST1000NX0323 is a 1TB enterprise hard drive with a 2.5-inch form factor, 15mm height and a SAS 12Gb/s interface. It spins at 7200 RPM and carries a 128MB cache for sustained throughput in nearline storage arrays. The drive is built for 24x7 operation in space-constrained data centres.

Suits high-density enterprise arrays.

This unit fits servers and storage enclosures that accept 15mm 2.5-inch SAS drives and need low power per terabyte. Buyers upgrading consumer laptops or slim workstations that only take 7mm SATA drives cannot use this model.

SAS 12Gb/s interface decides fit

The drive connects through a 12Gb/s SAS port, so the host backplane or controller must support that standard. A system with only SATA 6Gb/s connectors will not recognise the drive.

How it compares

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

Price $163.99
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 $163.99 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 nameST1000NX0323
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 weight0.91 kg
Package size102 × 76 × 15 mm

Questions about this item

What does the SAS 12Gb/s interface cap in real-world throughput?

The SAS 12Gb/s link tops out at 12 Gbit/s; sustained sequential transfers reach 18% higher than the previous generation, while the 128 MB cache absorbs bursts before the 7200 RPM platters become the bottleneck.

What physical clearance does the 15 mm z-height drive need?

The drive measures 100.46 mm long, 70.10 mm wide and 15 mm tall, so the host bay must accommodate a 15 mm 2.5-inch form factor; many slim laptops only accept 7 mm models.

How is the drive installed, and which step is often missed?

Connect the SAS data and power connectors, secure the drive with four M3 screws, then configure the RAID controller or HBA for 4Kn sector mode; skipping the 4Kn setting causes the drive to report zero capacity.

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