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Silver 3.5 inch SATA hard drive bare unit

Seagate

Seagate ST3250820NS 250GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-NCJA-HX3GD MPN ST3250820NS

A 250 GB, 7200 RPM SATA 3.0 Gb/s desktop drive built for 24 × 7 server workloads with 8 MB cache and 4.16 ms latency

  • Total capacity250 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory8 MB
  • 250 GB capacity stores operating system and critical data
  • 7200 RPM spindle speed delivers responsive read and write performance
  • 8 MB cache buffers bursts for smoother multitasking
  • SATA 3.0 Gb/s interface integrates with standard desktop and server controllers
  • Perpendicular recording and NCQ enhance reliability for 24 x 7 server workloads

Server-grade storage

The Seagate BarraCuda ES ST3250820NS is a 250GB 3.5-inch internal hard drive built for continuous server workloads. It spins at 7200 RPM with an 8MB cache and connects through a SATA 3.0Gb/s interface. The bare-drive packaging suits system integrators and IT departments deploying multi-drive arrays.

24×7 reliability rating

This model carries the highest reliability rating for 24×7 operation, making it the deciding specification for environments that never power down. Perpendicular recording technology supports data integrity at this capacity point. Native command queuing (NCQ) helps maintain throughput when multiple requests arrive simultaneously.

Sustained multi-drive operation

Multidrive firmware and best-in-class rotational vibration tolerance keep performance consistent when many drives run side by side in a chassis. Average latency is 4.16ms, reflecting steady-state access rather than burst speed. The drive is not intended for single-drive desktop upgrades or portable enclosures.

How it compares

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

Price $50.99
Cheaper than about 77% 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 $203.96 per TB
Pricier than about 79% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda ES
Model nameST3250820NS
Total capacity250 GB
Recommended useIdeal for Servers
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory8 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.59 kg
Package size146 × 102 × 25 mm

Questions about this item

What does the 7200 RPM speed mean for real-world server workloads?

The 7200 RPM spindle delivers an average latency of 4.16ms, allowing quicker data access for continuous 24 x 7 server operations.

What does the SATA 3.0Gb/s interface limit in practice?

The SATA 3.0Gb/s link caps maximum transfer rates to 3.0 Gb/s, so sustained throughput cannot exceed that bandwidth.

Will this 3.5" bare drive fit a standard server drive bay?

Yes, the 3.5-inch form factor matches standard internal drive bays used in servers and desktop chassis.

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