WD Ultrastar DC HC550 18TB SAS SE/ PN:

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Internal hard drives with higher capacities and lower TCO

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

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.
Full Specifications
Features

CMR technology works with all capacity enterprise applications and environments
Industry's first HDD with Energy Assisted-Magnetic Recording technology
Industry's first Triple Stage Actuator
HelioSeal design delivers outstanding power efficiency (Watts/TB)

Capacity
18TB
Form Factor
3.5-Inch
Connector
SATA
Compatibility

Windows, Windows Server, Linux

Interface
SAS
Transfer Rate
up to 269MB/s
Disk Speed (RPM)
7200 RPM
Recording Technology
EAMR
Cache Size
512MB
Security
SE
Warranty
5-Year Limited Warranty
Dimensions (L x W x H)
5.79" x 4" x 1.03"
Weight
690gms
Operating Temperature
5°C to 60°C
Non-Operating Temperature
-40°C to 70°C
Drive
3.5"
Certifications
BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL