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Silver 3.5 inch bare hard drive with green circuit board visible

Seagate

Seagate Constellation CS ST1000NC001 1TB 7200 RPM 64MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-3C42-7A21C MPN ST1000NC001

Enterprise-class 1TB 7200 RPM SATA drive with 64MB cache, built for 24x7 cloud workloads

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity1TB
  • RPM7200 RPM
  • Cache64MB
  • Average Seek Time9.5ms
  • 1TB capacity for 24x7 cloud storage workloads
  • 7200 RPM spindle speed delivers responsive data access
  • 64MB cache buffers bursts for smoother throughput
  • SATA 6.0Gb/s interface enables fast host transfers
  • 5-inch form factor fits standard enterprise bays

Enterprise cloud storage drive

The Seagate Constellation CS ST1000NC001 is a 1TB 3.5-inch hard drive built for 24x7 cloud data center replicated environments. Its 7200 RPM spindle and 64MB cache deliver steady throughput for cloud storage servers, arrays and backup appliances. The bare drive format suits system integrators deploying high-density racks.

SATA 6.0Gb/s interface limits

The SATA 6.0Gb/s interface caps burst transfer at the bus ceiling, so sustained rates sit well below the theoretical maximum. Average seek time of 9.5ms and average write time of 10.5ms reflect mechanical latency that no interface upgrade can remove. The drive draws under 8 watts, keeping power and cooling costs low in large deployments.

Upgrade from lower-capacity enterprise drives

Replacing smaller 7200 RPM enterprise drives with this 1TB model consolidates bays and cuts per-terabyte operating expense. The jump is worth it when replication schemes demand affordable capacity and high vibration tolerance in the same chassis. Seagate Instant Secure Erase simplifies repurposing or disposal at end of life.

Highlights

  • 1TB capacity for 24x7 cloud storage workloads
  • 7200 RPM spindle speed delivers responsive data access
  • 64MB cache buffers bursts for smoother throughput
  • SATA 6.0Gb/s interface enables fast host transfers
  • 5-inch form factor fits standard enterprise bays

Specifications

BrandSeagate
SeriesConstellation CS
ModelST1000NC001
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity1TB
RPM7200 RPM
Cache64MB
Average Seek Time9.5ms
Average Write Time10.5ms
FeaturesAffordable storage for 24x7 cloud data center replicated environments.
High vibration tolerance for reliable enterprise-class performance.
Save on power and cooling costs with the lowest 3.5-inch enterprise drive operating power.
Advanced format logical block management for industry-leading data integrity.
1TB capacity with 7200-RPM performance.
Lower TCO with Seagate Instant Secure Erase for simple drive repurposing or disposal.
SATA 6Gb/s interface optimizes burst performance.
Best-Fit Applications
- Cloud storage servers
- Cloud storage arrays
- Cloud backup storage
- Direct-attac
Form Factor3.5"
Shipping weight0.80 kg
Package size163 × 123 × 29 mm

Questions about this item

Should I choose the 1TB model or a different capacity for my NAS?

This model provides 1TB of storage; if you need more space you would select a higher-capacity drive from the same Constellation CS series.

How does the 7200 RPM speed affect real-world performance in a server?

The 7200 RPM spindle delivers a 9.5 ms average seek time and 10.5 ms average write time for consistent throughput in 24x7 workloads.

What does the SATA 6.0Gb/s interface limit in practice?

The SATA 6.0Gb/s link caps burst transfer at 6.0 Gb/s; sustained rates are governed by the 7200 RPM platters and 64MB cache.

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