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Silver 3.5 inch bare hard drive with exposed circuit board

Western Digital

Western Digital WD101KFBX 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-833T-KA8WZ MPN WD101KFBX

10 TB, 7200 RPM enterprise NAS drive with 256 MB cache and SATA 6.0 Gb/s interface for up to 24-bay systems

  • Total capacity10 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • 10TB capacity stores massive datasets
  • 7200 RPM spindle speed delivers fast data access
  • 256MB cache accelerates read and write performance
  • Supports up to 24-bay NAS systems
  • 300TB annual workload rate handles heavy enterprise use

10 TB NAS hard drive for multi-bay arrays

This 10 TB SATA drive is built for enterprise NAS enclosures that support up to 24 bays and carries a 300 TB yearly workload rating. It targets IT teams and small-business operators who need continuous operation in RAID or JBOD configurations.

Simple 3.5" SATA installation

The drive slides into any standard 3.5 inch bay and connects through a single SATA 6.0 Gb/s cable; no special drivers are required. Because it ships as a bare drive without mounting screws or brackets, installers must supply their own hardware and verify that the chassis provides adequate airflow for 7200 RPM operation.

256 MB cache determines sustained throughput

A 256 MB buffer handles bursty multi-user workloads and keeps sequential transfers steady during heavy read-write cycles. Buyers who need lower cache sizes or different interface types should look elsewhere, as this model is fixed at 256 MB and SATA only.

How it compares

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

Price $259.99
Pricier than about 78% of the 4,938 comparable items (median $107.99).
Total capacity 10 TB
Higher than about 85% of the 2,372 comparable items (median 2 TB).
Price per TB $26.00 per TB
Cheaper than about 88% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineRed Pro
Model nameWD101KFBX
Total capacity10 TB
Recommended useEnterprise NAS Hard Drives
Performance
Rotational speed7,200 RPM
Storage
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length147 mm
Shipping weight0.78 kg
Package size224 × 150 × 74 mm

Questions about this item

How can I confirm the 7200 RPM drive is running correctly after installation?

Check the drive's SMART data for the 7200 RPM spindle speed and verify the 256MB cache is detected in your NAS management software.

What is included with the bare drive and what must I purchase separately?

The package contains only the 3.5-inch drive unit. You must supply SATA data and power cables, plus mounting screws for your NAS bay.

Which capacity should I choose for a 16-bay NAS supporting up to 24 bays?

This 10TB model fits within the 2TB to 22TB range and is rated for up to 16-bay systems, with larger capacities available for 24-bay configurations.

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