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Silver 3.5 inch enterprise hard drive with SAS connector

Seagate

Seagate Constellation ES ST31000424SS 1TB SAS 7200 RPM 3.5" internal hard drive

SKU CH-R4RF-RJVX2

1TB SAS 7200 RPM enterprise hard drive with self-encryption, protection information and dual-port reliability for 24x7 server arrays

  • Total capacity1 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Mean latency4.16 ms
  • Recommended useFor Enterprise Storage
  • Enterprise reliability for 24/7 server workloads
  • SAS 6Gb/s interface for fast data transfer
  • 7200 RPM spindle speed with 4.16ms latency
  • Self-encrypting drive protects stored data
  • Dual-port design adds path redundancy

Enterprise Storage Drive

The Seagate Constellation ES ST31000424SS is a 1TB SAS hard drive built for 24x7 multi-drive server and storage environments. Its enterprise-class design targets administrators who need consistent throughput and data integrity in demanding workloads. The 7200 RPM spindle speed supports sustained read and write operations across large arrays. This drive suits IT teams deploying high-capacity nearline storage.

Dual-Port SAS Connectivity

A 6Gb/s SAS interface with dual-port architecture provides redundant data paths for improved fault tolerance. The 3.5" form factor fits standard enterprise drive bays and backplanes without adapters. Low halogen materials and Protection Information support help meet data-centre environmental and integrity requirements. Self-Encrypted Drive technology secures data at rest without host-side overhead.

1TB Capacity Constraint

The single 1TB capacity limits total raw space per drive bay, so arrays needing multi-terabyte volumes will require more spindles. Buyers who need greater density per slot should consider higher-capacity enterprise drives. The 4.16ms average latency is fixed by the 7200 RPM rotation and cannot be improved by configuration. This model does not serve workloads demanding SSD-level random access speeds.

How it compares

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

Price $45.99
Cheaper than about 81% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $45.99 per TB
Cheaper than about 65% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineConstellation ES Series
Model nameST31000424SS
Total capacity1 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

What does the SAS 6Gb/s interface cap the maximum transfer rate at?

The SAS 6Gb/s interface caps the theoretical maximum transfer rate at 6 Gb/s, though real-world throughput depends on the controller and workload.

What physical space and mounting does the 3.5" form factor require?

The 3.5" form factor requires a standard 3.5-inch drive bay and uses the industry-standard screw-hole pattern for secure mounting.

How is the dual-port SAS drive installed, and what step is often missed?

Connect both SAS ports to the controller or expander for multipath redundancy; the step often missed is cabling the second port, leaving the drive on a single path.

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