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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

  • PackagingRetail
  • InterfaceSAS 3Gb/s
  • Capacity500GB
  • NAND Flash Memory TypeEnterprise
  • RPM7200 RPM
  • Cache16MB
  • 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.

Highlights

  • 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

Specifications

BrandSeagate
SeriesBarraCuda ES.2
ModelST3500620SS
PackagingRetail
InterfaceSAS 3Gb/s
Capacity500GB
NAND Flash Memory TypeEnterprise
RPM7200 RPM
Cache16MB
Average Latency4.16ms
FeaturesPerpendicular recording technology for maximum capacity
24x7 operation and 1.2 M hrs. MTBF
Dynamic power saving using Seagate PowerTrim technology
Broad spectrum rotational vibration tolerance at 12.5 rads/s2
Error recovery control - quick error resolution to prevent system timeouts
Workload management to ensure operational reliability
Quick and robust download with firmware security checks
Write Same command for efficient RAID initialization
Idle Read After Write data integrity checking
16-MB cache
Low total cost of ownership
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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