Investor Presentaiton

10 Capital Expenditure Framework Cash Capital Expenditures (1) Flash Ventures Capital Expenditures Gross Capital Expenditures 1 HDD CapEx 2 Flash Non-Fab CapEx 3 Flash Ventures Parent Loans (2) © 2023 WESTERN DIGITAL CORPORATION OR ITS AFFILIATES ALL RIGHTS RESERVED 3 Flash Ventures Parent Loans (2) + 4 Flash Ventures Lease Financing(2) 2 3 HDD CapEx + Flash Non-Fab CapEx Flash Ventures Parent Loans (2) 1. Cash Capital Expenditures includes purchases of property, plant and equipment, net, and notes receivable issuances to Flash Ventures, net. 2. 3. Flash Ventures Parent Loans, Flash Ventures Lease Financing, and Flash Ventures Net Operating Cash Flow are comprised only of Western Digital's portions. Flash Ventures Net Operating Cash Flow is primarily generated from equipment depreciation payments. 4 Flash Ventures Lease Financing (2) 5 5 Flash Ventures Net Operating Cash Flow (2)(3) Flash Ventures Net Operating Cash Flow (2)(3)

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