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Silver 3.5-inch bare SATA hard drive with exposed circuit board

Western Digital

Western Digital WD4000FYYZ 4TB 7200 RPM 64MB SATA 3.5" internal hard drive

SKU CH-HT3P-Y1QQG MPN WD4000FYYZ

4TB enterprise-class 3.5" SATA hard drive spinning at 7200 RPM with 64MB cache, rated for 550TB yearly workloads

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • RPM7200 RPM
  • Cache64MB
  • Average Latency6Gb/s

Options 4TB

  • High capacity for demanding datacentre and cloud storage with 4TB
  • 7200 RPM spindle speed and 64MB cache for high-intensity application performance
  • SATA 6.0Gb/s interface provides broad compatibility with enterprise servers
  • 550TB per year workload rating designed for continuous operation
  • 5 inch form factor fits standard drive bays

4TB enterprise SATA drive

The WD RE WD4000FYYZ is a 3.5-inch internal hard drive built for datacenter, enterprise server and cloud storage environments. It delivers 4TB capacity over a SATA 6.0Gb/s interface with a 7200 RPM spindle and 64MB cache. The bare-drive packaging suits system integrators and IT departments deploying high-capacity nearline storage.

Sustained 550TB yearly workload

Designed for high-intensity applications, the drive handles workloads up to 550TB per year, far exceeding typical desktop drive ratings. StableTrac technology secures the motor shaft at both ends to reduce system-induced vibration and stabilise platters for accurate tracking during continuous read and write operations. This construction supports consistent performance in high-availability arrays and data-warehousing tasks.

3.5-inch form factor with standard mounting

The drive measures 147.00mm long, 101.60mm wide and 25.4mm high, fitting standard 3.5-inch drive bays and hot-swap trays. A single SATA data and power connector provides broad compatibility with backplanes and host bus adapters. Bare-drive delivery means no retail accessories are included, so installers should plan for screws, cables and any required carrier brackets.

Highlights

  • High capacity for demanding datacentre and cloud storage with 4TB
  • 7200 RPM spindle speed and 64MB cache for high-intensity application performance
  • SATA 6.0Gb/s interface provides broad compatibility with enterprise servers
  • 550TB per year workload rating designed for continuous operation
  • 5 inch form factor fits standard drive bays

Specifications

BrandWD
SeriesRE
ModelWD4000FYYZ
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity4TB
RPM7200 RPM
Cache64MB
Average Latency6Gb/s
FeaturesHigh capacity nearline drive
Multiple capacities to suit even the most demanding datacenter, enterprise server, or cloud storage needs.
Designed for high-intensity applications
Designed to handle workloads up to 550TB per year - among the highest workload capability of any 3.5-inch hard drive - delivering both performance and reliability to any datacenter environment.
StableTrac (excluding FBYZ models)
The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking during read and write operations.
Vibration Protection
Enhanced
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)25.4mm
Width (maximum)101.60mm
Length (maximum)147.00mm
Shipping weight0.77 kg
Package size146 × 102 × 25 mm

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Questions about this item

How much power and heat does the 4 TB 7200 RPM RE drive generate during continuous operation?

The WD Re is designed for workloads up to 550 TB per year, reflecting engineering for sustained enterprise use.

What host interface and physical bay does the WD4000FYYZ require to operate?

It connects via a SATA 6.0 Gb/s port and fits a standard 3.5-inch drive bay with a maximum height of 25.4 mm.

Will the 64 MB cache SATA drive work reliably alongside older 3 Gb/s SATA controllers or backplanes?

The SATA 6.0 Gb/s interface is backward compatible with earlier SATA speeds, so it will operate on legacy controllers at the lower link rate.

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