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Silver rectangular 3.5 inch SATA hard drive with green circuit board visible

Seagate

Seagate Barracuda ES.2 ST3500320NS 500GB 7200 RPM 32MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-JEAW-2T9HM

A 500 GB 3.5" desktop drive with a 7200 RPM spindle, 32 MB cache and a SATA 3.0Gb/s interface

  • Total capacity500 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory32 MB
  • 500 GB capacity stores large desktop workloads
  • 7200 RPM spindle delivers responsive data access
  • 32 MB cache buffers frequent read and write operations
  • SATA 3.0 Gb/s interface connects to standard desktop motherboards
  • 5 inch form factor fits typical internal drive bays

Enterprise Storage Drive

The Seagate Barracuda ES.2 ST3500320NS is a 3.5-inch internal hard drive built for desktop and entry-level server storage. It delivers 500GB of capacity over a SATA 3.0Gb/s interface with a 7200 RPM spindle speed and 32MB cache.

Suited for RAID and Archival Workloads

This drive suits system builders assembling RAID arrays, NAS units or backup targets that benefit from sustained throughput and vibration tolerance. Buyers who need higher capacities, faster transfer rates or solid-state responsiveness should consider other storage types.

Deciding Specification: 7200 RPM Spindle Speed

The 7200 RPM rotation rate determines the drive's random-access performance and sustained transfer ceiling. If your workload demands lower latency or higher IOPS than this speed provides, a different drive class will be required.

How it compares

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

Price $171.99
Pricier than about 64% of the 4,938 comparable items (median $107.99).
Total capacity 500 GB
Lower than about 80% of the 2,372 comparable items (median 2 TB).
Price per TB $343.98 per TB
Pricier than about 86% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineES.2
Model nameST3500320NS
Total capacity500 GB
Performance
Rotational speed7,200 RPM
Storage
Cache memory32 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

How long will the 32 MB cache sustain burst transfers before the 7200 RPM platters become the bottleneck?

The 32 MB cache absorbs short bursts at the SATA 3.0 Gb/s interface rate, but sustained throughput settles at the mechanical limit of the 7200 RPM platters once the cache fills.

What noise and heat should I expect when this 3.5" drive runs continuously in a desktop chassis?

A 7200 RPM 3.5" mechanism produces audible seek noise and measurable warmth during all-day operation; ensure the case provides airflow across the drive’s top and bottom surfaces.

Which existing cables and ports must my system already have for this SATA 3.0 Gb/s drive to work?

The system needs a free SATA data port on the motherboard or controller, a matching SATA data cable, and a SATA power connector from the power supply.

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