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WD Ultrastar DC HC550 18TB Hard Drive 3.5″ Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4)

The WD Ultrastar DC HC550 18TB is a high-capacity enterprise hard drive engineered for demanding data center environments. This 3.5-inch internal drive delivers exceptional storage density with 18TB capacity while maintaining reliable 7200 RPM performance. Key features include a substantial 512MB cache for enhanced data throughput, SATA 6Gb/s interface for broad compatibility, and 512E advanced format technology for improved efficiency. Built with HelioSeal technology, it operates cooler and more efficiently than traditional air-filled drives, reducing power consumption by up to 56%. The drive offers 2.5 million hours MTBF reliability rating and is designed for 24/7 operation with up to 550TB annual workload rating. Its vibration tolerance and error recovery controls make it ideal for multi-drive environments, while the 5-year warranty provides enterprise-grade assurance. Perfect for cloud storage, big data analytics, and high-density storage arrays requiring maximum capacity with proven reliability.

Quote50 pcs(MOQ) Minimum Order Quantity

Bulk Order Discounts Available

InterfaceSATA 6.0Gb/s
Capacity18TB
Form Factor3.5"
ApplicationServer
BrandWestern Digital

ULTRASTAR DC HC550 – 18TB

Data center decisions are driven by TCO. The Ultrastar DC HC550, with 14TB, 16TB & 18TB1, play a leading role in reducing TCO.
Ultrastar<sup></sup> DC HC550 - 18TB

Total Cost Of Ownership (TCO) Drives The Data Center Architecture

Data center decisions are driven by TCO. Higher capacity hard drives play a leading role in reducing TCO. An 18TB data center internal hard drive provides 29% more capacity in the same form factor as a 14TB HDD. Higher capacity HDDs enable data centers to lower CapEx by reducing supporting hardware and system level costs when compared to lower capacity drives. Helium-sealed, low power, high reliability drives reduce energy and maintenance costs, contributing to OpEx savings. For example, a data center using 18TB HDDs vs. 14TB HDDs can require 22% fewer racks while consuming 21% less power per TB at idle, resulting in significant overall TCO reduction for data center environments.

Raising The Capacity Bar With New Technologies

Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create a new class of HDDs. 18TB capacity is achieved by combining technologies that improve areal density working together with technologies that improve performance and reduce power consumption.? The first internal hard drives in the industry to harness Energy-Assisted Magnetic Recording (EAMR) technology improves writability and therefore increases areal density. The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy, delivering better performance and increased areal density.? HelioSeal’ technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date.

SPECIFICATIONS

General
Capacity 18TB
Interface SATA
Security SE
compatibility Windows, Windows Server, Linux
Dimension 5.79″ x 4″ x 1.03″
Product Weight 1.52lbs
Transfer Rate up to 269MB/s
Drive 3.5″
Interface

SATA 6.0Gb/s

Capacity

18TB

Form Factor

3.5"

Application

Server

Brand

Western Digital

Width (maximum)

101.60mm

Usage

For Enterprise Storage

Recording Technology

CMR

Length (maximum)

147.00mm

Cache

512MB

Average Latency

4.16ms

Height (maximum)

26.10mm

Products Status

New

RPM

7200 RPM

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