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Silver 3.5 inch bare hard drive with green circuit board visible on underside

Seagate

Seagate BarraCuda ST3000DM008 3TB 7200 RPM 64MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-M6XS-RN0QW MPN ST3000DM008

A 3TB 3.5-inch desktop hard drive with 7200 RPM speed and 64MB cache for fast, reliable storage

  • Total capacity3 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory64 MB

Model 3TB 7200RPM

  • 3 TB capacity stores games, media and work files
  • 7200 RPM spin speed accelerates everyday read and write tasks
  • 64 MB cache improves burst responsiveness on SATA 6.0 Gb/s
  • 5 inch form factor fits standard desktop bays and enclosures
  • 20 years of BarraCuda engineering delivers dependable long-term storage

3TB Desktop Drive for Everyday Computing

The Seagate BarraCuda ST3000DM008 is a 3.5 inch internal hard drive built for daily desktop workloads. It spins at 7200 RPM with a 64MB cache and connects through a SATA 6.0Gb/s interface. The 3TB capacity suits users who need more room for applications, media libraries and backups in a single bay.

Suits Standard Desktop Builds.

This drive fits typical desktop chassis, all-in-one PCs, home servers and entry-level direct-attached storage devices that accept a 3.5 inch form factor. Buyers upgrading a notebook or any system limited to a 2.5 inch slot cannot use this unit. The bare-drive packaging also means no mounting screws or cables are included.

7200 RPM Spindle Speed Decides Responsiveness

The 7200 RPM rotation rate determines how quickly the platters serve data for boot, launch and large-file streaming tasks. If your workload demands the lower latency of solid-state storage, this mechanical drive will not meet that requirement. For capacity-first desktop storage where mechanical speed is acceptable, the spindle rate is the key figure to evaluate.

How it compares

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

Price $56.99
Cheaper than about 72% of the 4,938 comparable items (median $107.99).
Total capacity 3 TB
Higher than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $19.00 per TB
Cheaper than about 93% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda
Model nameST3000DM008
Total capacity3 TB
Recommended useFor Daily Computing
Performance
Rotational speed7,200 RPM
Storage
Cache memory64 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.11 mm
Maximum width101.85 mm
Maximum length146.99 mm
Shipping weight0.61 kg
Package size152 × 102 × 25 mm

Other versions of this model

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Questions about this item

What are the exact dimensions of the 3.5" ST3000DM008 drive?

The drive measures 146.99 mm long, 101.85 mm wide and 26.11 mm high, so it fits any standard 3.5-inch desktop bay.

What is the most common mistake when installing this SATA 6.0Gb/s drive?

People often forget to connect both the SATA data cable and the separate SATA power connector from the PSU; the drive will not spin up without both.

How long can the 7200 RPM mechanism be expected to last before replacement?

The BarraCuda family has over 20 years of field history; under normal desktop workloads the drive typically runs for many years before a replacement is needed.

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