Life Cycle Assessment: Western Digital Ultrastar® DC HC550 Hard Disk Drive (HDD):

Model

0F38478

Product Type

Enterprise SSD

Product Weight

679 gm

Packaging Weight

210 gm

Storage Capacity

18 Terabyte1

Model

SATA

Form Factor

3.5 Inch

Applica on

Enterprise data center applica on

LCA Calculation Basis:

Standard

ISO 14040:2006 and 14044:2006

LCA So ware

GaBi ts [Version 10.6.2.9]

Impact Assessment Method

Life cycle impact assessment classifica on and characteriza on factors according to

the Intergovernmental Panel on Climate Change (IPCC) 6th Assessment Report for

Global warming Poten al (GWP), with 100 years of

me horizon for kg CO2

equivalent (carbon footprint)

Database

GaBi 2022 LCI and ecoinvent 3.7

System Boundary

The system boundaries include:

• Manufacturing (extrac on of raw materials, upstream material prepara on,

electronic component manufacturing, subassembly manufacturing and final

assembly of product)

• Distribu on to customer located in USA

• Five years of product use

• End-of-life treatment according to waste management sta s cs in the

customer country

Valida on of Study

Validated through 3rd party cri cal review (EarthShi

Global)

  • One terabyte (TB) is equal to one trillion bytes. Actual user capacity may be less due to opera ng environment.
  • *Absolute climate change impact values & contribu on details for each phase will be available upon request ©2024 Western Digital Corpora on or its affiliates. All rights reserved.

Components Used:

The pie chart shows weight contribu on of various components of the HDD. Motor base assembly (MBA) contributes 40% of the weight, followed by Media [18%], VCMA [16%], and Cover assembly [15%]. The remaining 11 % of the weight is from other components

Breakdown of Carbon Footprint by Life Cycle Stages2:

[71%] of climate change impacts are from Use phase, followed by Manufacturing phase [24%], Distribution phase [4.5%] and End-of-Life phase [<1%]. Use phase impacts are primarily attributable to energy consumed by the product during its useful life. Manufacturing impacts are driven by resource consumption during the product assembly & sub-assembly processes, distribution phase impacts are focused on transportation of the product from the manufacturing location to the customer location.

  • One terabyte (TB) is equal to one trillion bytes. Actual user capacity may be less due to opera ng environment.
  • *Absolute climate change impact values & contribu on details for each phase will be available upon request ©2024 Western Digital Corpora on or its affiliates. All rights reserved.

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Disclaimer

Western Digital Corporation published this content on 07 May 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 08 May 2024 09:00:08 UTC.