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Western Digital Gold 18TB Enterprise-class 3.5" SATA 6Gb/s HDD 7200 RPM 512MB Cache 5-Year Warranty
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SKU: wd181kryz

Availability: Out of Stock

Brand: Western Digital

Category: Hard Disk Drives (HDD)

$1,076.90


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Description
SPECIFICATION
Review

The Western Digital Gold 18TB hard drive is engineered for enterprise-grade, 24/7 datacenter and storage workloads. Featuring a 3.5-inch form factor and SATA 6 Gb/s interface, this HDD delivers robust 7200 RPM performance combined with a large 512MB cache for fast data access and transfer speeds up to 269 MB/s. Utilizing HelioSeal technology for models 12TB and above, it provides high areal density and reduced power consumption, making it ideal for heavy read-write environments and multi-drive RAID systems.

To enhance reliability, the drive incorporates Rotational Vibration Safeguard (RVS), which detects and compensates for vibrations in dense server applications to sustain consistent performance. With a projected MTBF of 2.5 million hours and an annualized failure rate of just 0.35%, itโ€™s designed to endure demanding enterprise workloads with an operational workload rating supporting up to 550TB/year. Additional features include a low power consumption profile and 5-year manufacturer limited warranty, providing peace of mind for enterprise deployments.

This WD Gold HDD supports broad OS compatibility including Windows, Linux, macOS, and Windows Server, making it suitable for diverse server and storage environments. The drive operates reliably between 5ยฐC and 60ยฐC, with physical dimensions suitable for standard 3.5-inch drive bays in servers and storage arrays.

General

Vibration ProtectionRotational Vibration Safeguard (RVS)
Sector Size512e
Acoustic Noise Seek36 dBA
Acoustic Noise Idle20 dBA
Non-Operating Temperature-40\u00b0C to 70\u00b0C
Power Consumption (Idle)5.6W
Power Efficiency (Idle)0.31 W\/TB
Power Consumption (Operational)6.5W
Load/Unload Cycles600,000 minimum
Annualized Failure Rate0.35%
MTBF2,500,000 hours
Cache Size512 MB
Max Sustained Transfer Rate269 MB\/s (257 MiB\/s)

Identification

Part NumberWD181KRYZ

Support

Warranty5-Year Limited

Physical

Weight0.66 kg (1.46 lb)
Dimensions (WxDxH)26.1 x 147 x 101.6 mm (1.028 x 5.787 x 4.0 in)
Form Factor3.5-inch
weight_grams660
Dimensions (mm)26.1 x 147 x 101.6 mm
Sector Format512e
capacity_tb18
Form Factor3.5-inch

Environmental

Operating Temperature5\u00b0C to 60\u00b0C

Performance

Rotational Speed7200 RPM
cache_mb512
rotation_speed_rpm7200
spindle_speed_rpm7200

Technical

Capacity18TB
Intended UseEnterprise
TechnologyHelioSeal (for 12TB and higher models)
InterfaceSATA 6 Gb\/s

Identity

SeriesWD Gold

Warranty

Warranty (years)5

Reliability

mtbf_hours2500000

Identifiers

Model NumberWD181KRYZ

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