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Silver 3.5-inch internal hard drive with circuit board visible underneath

Western Digital

Western Digital WD6001FZWXProduct 6 TB 7200 RPM 128 MB 3.5" SATA internal hard drive

SKU CH-2XWH-3K4NR MPN WD6001FZWXProduct

Stores 6 TB on a 7200 RPM 3.5-inch desktop drive with 128 MB cache and SATA 6 Gb/s interface

  • NAND Flash Memory TypeHard Drive
  • 6 TB capacity stores large media libraries and backups
  • 7200 RPM spindle speed delivers fast sequential read performance
  • 128 MB cache buffers bursts for smoother multitasking
  • 5 inch SATA interface fits standard desktop drive bays

Purpose-built desktop storage

The WD Black 6 TB hard drive delivers a 7200 RPM spindle speed and a 128 MB buffer for desktop workloads that demand sustained throughput. Its 3.5-inch form factor fits standard internal bays and the SATA 6 Gb/s interface connects directly to mainstream motherboards. The drive is suited to creative professionals, enthusiasts and power users who need high-capacity primary or secondary storage. It is not intended for laptops, external enclosures or systems that only accept 2.5-inch drives.

SATA interface limits

The SATA 6 Gb/s link caps maximum sequential transfer at the interface ceiling, so sustained reads and writes cannot exceed that bandwidth regardless of the drive’s internal speed. Random I/O performance is bounded by the 7200 RPM rotational latency and the mechanical actuator. The 128 MB cache absorbs bursts but does not eliminate physical seek delays. Builders needing higher queue depths or lower latency should consider drives based on faster interfaces.

Highlights

  • 6 TB capacity stores large media libraries and backups
  • 7200 RPM spindle speed delivers fast sequential read performance
  • 128 MB cache buffers bursts for smoother multitasking
  • 5 inch SATA interface fits standard desktop drive bays

Specifications

BrandWD
NAND Flash Memory TypeHard Drive

Questions about this item

Should I pick the 6 TB 7200 RPM model with 128 MB cache or a smaller capacity in the same Black line?

The 6 TB version keeps the same 7200 RPM spindle speed and 128 MB buffer, so you gain maximum capacity without losing the performance profile of the series.

How does the SATA 600 interface affect real-world transfer speeds inside a desktop PC?

The drive connects at SATA 600, letting it sustain sequential reads and writes near the interface limit while the 7200 RPM platters and 128 MB cache keep random access responsive for OS and game loads.

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