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Silver 3.5-inch SAS internal hard drive, retail box

Seagate

Seagate ST3500620SS 500GB SAS 3Gb/s 7200 RPM 16MB Cache Internal Hard Drive

SKU CH-FSTH-RDMD1 MPN ST3500620SS

A 500 GB SAS desktop drive with 7200 RPM and 16 MB cache, built for 24x7 operation and 1.2 M hrs MTBF

  • Total capacity500 GB
  • Interface typeSAS 3Gb/s
  • Packaging typeRetail
  • Flash memory typeEnterprise
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • 500 GB capacity stores large datasets
  • 7200 RPM spindle delivers fast data access
  • 16 MB cache accelerates read and write performance
  • SAS 3Gb/s interface connects to enterprise controllers
  • 2 M hrs MTBF supports 24x7 operation

Seagate BarraCuda ES.2 500GB SAS Drive

The Seagate BarraCuda ES.2 ST3500620SS is a 500GB internal hard drive built for desktop workstations and entry-level servers. It uses a SAS 3Gb/s interface and spins at 7200 RPM with a 16MB cache. The drive is rated for 24x7 operation and a 1.2 M hrs MTBF.

Suited for RAID and nearline storage.

This drive suits builders who need SAS connectivity for RAID arrays or nearline storage where rotational vibration tolerance of 12.5 rads/s2 matters. It is not for laptops or compact systems that cannot accept a 3.5-inch SAS drive. Buyers needing higher capacity or a different interface should look elsewhere.

SAS 3Gb/s interface decides compatibility

The single specification that decides fit is the SAS 3Gb/s interface; the host controller or backplane must support this exact protocol. Average latency is 4.16ms and perpendicular recording technology underpins the 500GB capacity. Firmware features include Write Same for RAID initialization and idle read-after-write integrity checking.

How it compares

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

Price $108.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 500 GB
Lower than about 80% of the 2,372 comparable items (median 2 TB).
Price per TB $217.98 per TB
Pricier than about 80% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda ES.2
Model nameST3500620SS
Total capacity500 GB
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Flash memory typeEnterprise
Cache memory16 MB
Ports & slots
Interface typeSAS 3Gb/s
Size & build
Shipping weight1.47 kg
Package size178 × 127 × 51 mm

Questions about this item

How long is the MTBF rating for the ST3500620SS drive?

The drive is rated for 1.2 M hrs MTBF under 24x7 operation, reflecting its enterprise-class design for continuous use.

What sustained throughput ceiling does the SAS 3Gb/s interface impose?

The SAS 3Gb/s interface caps sustained transfer rates at the bus limit of 3 Gb/s, which is the first bottleneck during heavy sequential workloads.

How much power does the drive draw during all-day operation with PowerTrim active?

Dynamic power saving via Seagate PowerTrim technology reduces consumption during idle periods, lowering total cost of ownership for 24x7 deployments.

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