Q3 FY19 Financial Results

Cash Flow Walk Cash Flow ($ Millions) $4,130 Cash & Marketable Securities $204 ($314) ($146) ($73) $3,801 Cash & Marketable Securities Q2 FY19 Operating Cash Flow Capex Dividend Other Q3 FY19 (1) CAPEX includes purchases of property, plant and equipment, net, and the activity related to Flash Ventures, net Other primarily consists of employee stock plans, net, repayment of debt and other investing activities Western Digital. ©2019 Western Digital Corporation or its affiliates. All rights reserved. 4/29/19 6

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