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Silver 3.5 inch internal hard drive bare drive with circuit board visible

Western Digital

Western Digital WD4002FYYZ 4TB 7200 RPM 128MB SATA 3.5" internal hard drive

SKU CH-890N-Z300K MPN WD4002FYYZ

A 4TB 3.5" SATA hard drive built for 24/7 enterprise workloads up to 550TB per year with 7200 RPM and 128MB cache

  • Total capacity4 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory128 MB

Capacity 4TB

  • Enterprise-grade reliability for 24x7x365 operation
  • Handles heavy workloads up to 550TB per year
  • High MTBF of up to 2.5 million hours
  • Fast 7200 RPM with 128MB cache for responsive performance
  • 5 inch SATA 6.0Gb/s interface fits standard bays

Enterprise Storage Drive

The Western Digital WD4002FYYZ is a 4TB 3.5-inch internal hard drive built for enterprise servers, datacenter servers, and storage systems. It spins at 7200 RPM with a 128MB cache and connects via a SATA 6.0Gb/s interface. The bare drive is tested for 24x7x365 reliability at workloads up to 550TB per year.

Suited For Continuous Operation

This drive suits administrators who need high-capacity storage rated for constant operation and heavy annual workloads. Buyers who want faster access speeds for boot drives or low-latency applications should look at solid-state alternatives instead.

Check Bay And Controller Compatibility

Verify that your chassis has a free 3.5-inch bay with at least 26.10mm height, 101.60mm width, and 147.00mm length clearance. Confirm the host controller supports SATA 6.0Gb/s and can deliver sufficient power for a 7200 RPM enterprise drive.

How it compares

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

Price $237.99
Pricier than about 75% of the 4,938 comparable items (median $107.99).
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $59.50 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameWD
Product lineGold
Model nameWD4002FYYZ
Part numberWD4002FYYZ
Total capacity4 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Cache memory128 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 weight0.84 kg
Package size206 × 157 × 109 mm

Other versions of this model

1 more in the same range

Questions about this item

Does my system need a free SATA 6.0Gb/s port and 3.5" bay to install the WD4002FYYZ?

Yes. The drive uses a standard SATA 6.0Gb/s interface and the 3.5 inch form factor, so you need an available SATA data cable, a SATA power connector from your PSU, and a 3.5 inch drive bay or mounting bracket.

Can I run the 7200 RPM WD Gold drive alongside an existing SATA drive in the same machine?

Yes. Each SATA device connects to its own port on the motherboard or controller, so the WD4002FYYZ will operate independently of any other SATA drive already installed.

How can I confirm the WD4002FYYZ is running at 7200 RPM with its 128MB cache after installation?

Check the drive details in your BIOS or UEFI, or use a tool such as CrystalDiskInfo on Windows or smartctl on Linux; both will report the rotation rate as 7200 RPM and the cache size as 128MB.

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