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Silver 3.5 inch SATA hard drive rectangular metal case

Seagate

Seagate ST1000NM0033 1TB 7200 RPM SATA 6.0Gb/s 3.5" 128MB Cache Internal Hard Drive

SKU CH-9AV7-YMN33

A 1TB 3.5-inch desktop drive spinning at 7200 RPM with a 128MB cache and a 6.0Gb/s SATA interface

  • Total capacity1 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory128 MB
  • Mean latency4.16 ms
  • 1TB capacity for bulk storage needs
  • 7200 RPM spindle speed for responsive data access
  • SATA 6.0Gb/s interface for broad desktop compatibility
  • 128MB cache to smooth burst workloads
  • 5-inch form factor fits standard drive bays

Capacity and Interface

The Seagate ST1000NM0033 is a 1TB 3.5-inch internal hard drive designed for desktop and entry-level server storage. It operates at 7200 RPM with a 128MB cache to handle everyday workloads such as email, business processing and network-attached storage.

SATA 6.0Gb/s Throughput

The drive connects via a SATA 6.0Gb/s interface which caps the maximum theoretical transfer rate at 6.0Gbps. Real-world sustained throughput will be lower due to the mechanical nature of the platters and the 4.16ms average latency inherent to 7200 RPM operation.

1TB Cache and Headroom

The 1TB capacity combined with 128MB of cache provides ample space for operating systems, applications and general data archives. Workloads requiring sustained high random IOPS or very low latency will exceed the practical limits of this mechanical design.

How it compares

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

Price $33.99
Cheaper than about 91% 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 $33.99 per TB
Cheaper than about 77% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Total capacity1 TB
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory128 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

Is the 128 MB cache version the only one available for this 1 TB model?

The product data lists a single configuration with 128 MB cache for the 1 TB capacity.

What sustained transfer rate can I expect from the 7200 RPM platters inside a desktop PC?

The 7200 RPM speed and 4.16 ms average latency support typical sequential throughput for desktop workloads.

Does the SATA 6.0 Gb/s interface limit the drive to 6 Gb/s in a 3 Gb/s port?

The SATA 6.0 Gb/s interface negotiates down to 3 Gb/s on older ports, capping the maximum burst rate.

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