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Silver 3.5 inch bare hard drive with circuit board visible

Seagate

Seagate ST6000DX000 6TB 7200 RPM 128MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-H5WP-K3PG3 MPN ST6000DX000

A 6TB 3.5" desktop hard drive spinning at 7200 RPM with 128MB cache and a SATA 6.0Gb/s interface

  • Total capacity6 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory128 MB
  • 6TB capacity stores large media libraries and backups
  • 7200 RPM spindle speed delivers responsive file access
  • 128MB cache buffers bursts for smoother throughput
  • SATA 6.0Gb/s interface fits standard desktop bays
  • 5-inch form factor suits typical tower and NAS chassis

Desktop storage for bulk data

The ST6000DX000 is a 3.5 inch internal hard drive with a 6TB capacity. It spins at 7200 RPM and provides a 128MB cache for desktop workloads. The SATA 6.0Gb/s interface connects directly to standard motherboard ports. It suits users who need large volumes of affordable storage for media libraries or backups.

Bare drive with standard mounting

The unit ships as a bare drive without a retail box or cables. Dimensions are 5.79 inches long by 4 inches wide by 1.03 inches high, matching the standard 3.5 inch form factor. Four side mounting holes and bottom threads allow installation in any compatible drive bay or tray. The SATA data and power connectors sit on the rear edge for routine cabling.

No accessories or software included

The package contains only the drive itself; no screws, cables or software utilities are supplied. Builders must provide their own SATA data cable and power lead from the power supply. Drive management relies on the operating system's built-in formatting and monitoring tools. Buyers who want installation hardware or cloning software should source those separately.

How it compares

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

Price $350.99
Pricier than about 86% of the 4,938 comparable items (median $107.99).
Total capacity 6 TB
Higher than about 75% of the 2,372 comparable items (median 2 TB).
Price per TB $58.50 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameSeagate
Model nameST6000DX000
Total capacity6 TB
Performance
Rotational speed7,200 RPM
Average seek time<8.5 µs typical
Mean write time<9.5 µs typical
Mean latency4 ms
Storage
Cache memory128 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height1.03 in (2.62 cm)
Maximum width4 in (10.2 cm)
Maximum length5.79 in (14.7 cm)
Shipping weight1.36 kg
Package size196 × 150 × 74 mm

Questions about this item

What practical throughput does the SATA 6.0Gb/s interface cap at on this drive?

The SATA 6.0Gb/s interface supports up to 6.0Gb/s, though real-world sequential speeds are limited by the 7200 RPM platters and 128MB cache.

What are the exact mounting dimensions for a standard 3.5" bay?

The drive measures 1.03" high, 4" wide and 5.79" long, matching standard 3.5" bay screw-hole spacing.

How do I install this bare drive and which step is often missed?

Mount it in a 3.5" bay, connect a SATA data cable and a SATA power connector, then initialise and format the 6TB volume in your OS — skipping initialisation is the common mistake.

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