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Silver 3.5 inch bare hard drive with circuit board visible

Seagate

Seagate ST3250623NS 250GB 7200 RPM 16MB SATA 1.5Gb/s 3.5" internal hard drive

SKU CH-49XP-CDV2N MPN ST3250623NS

A 250 GB, 7200 RPM desktop drive with 16 MB cache and SATA 1.5 Gb/s interface built for 24x7 nearline workloads

  • Total capacity250 GB
  • Interface typeSATA 1.5Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • Designed for 24x7 operation with nearline-class reliability
  • 7200 RPM spindle speed delivers responsive data access
  • 16 MB cache buffers bursts for smoother throughput
  • SATA 1.5 Gb/s interface fits legacy desktop and server bays
  • 5 inch form factor suits standard internal drive cages

Nearline 250 GB drive

The Seagate NL35 ST3250623NS is a 3.5 inch internal hard drive built for continuous operation in servers or workstations. It offers 250 GB of storage on a SATA 1.5Gb/s interface with a 7200 RPM spindle and 16 MB cache.

Sustained 24x7 workload handling

Workload Management monitors temperature and activity to protect the drive during extended nearline duties. Error Recovery Control streamlines recovery in server environments, while Write Same executes large writes without host overhead for smoother sustained throughput.

Upgrade from desktop-class SATA

This nearline model replaces standard desktop drives where lower failure rates under constant load are required. The jump is worth it for 24x7 arrays or multi-drive deployments that need One-Step Microcode Download for simpler field upgrades.

How it compares

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

Price $65.99
Cheaper than about 66% of the 4,938 comparable items (median $107.99).
Total capacity 250 GB
Lower than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $263.96 per TB
Pricier than about 82% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineNL35
Model nameST3250623NS
Total capacity250 GB
Performance
Rotational speed7,200 RPM
Average seek time8 ms
Mean write time9 ms
Mean latency4.16 ms
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 1.5Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.68 kg
Package size203 × 152 × 51 mm

Questions about this item

How much heat and noise should I expect from the ST3250623NS when it runs 24 hours a day?

The NL35 series includes Workload Management that monitors temperature and activity to protect the drive during continuous operation, and it is built to meet 24x7 storage application requirements.

What must my system already have to install this bare ST3250623NS drive?

You need a free 3.5-inch drive bay, a SATA 1.5Gb/s data cable and a matching SATA power connector from your power supply.

Will the ST3250623NS work reliably alongside older SATA drives in the same machine?

Yes, its SATA 1.5Gb/s interface is backward compatible with earlier SATA revisions, and Error Recovery Control helps maintain uptime in mixed-drive server environments.

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