Investor Presentaiton

Revenue Trends by End Market In billions $ 2.0 $ 1.6 Cloud In billions $ 2.0 $ 1.6 $ 1.2 $ 0.8 $ 0.4 $ 0.4 $ - $ - Q1F23 Q2F23 Q3F23 Q4F23 Q1F24 Revenue $ 0.9 billion Decreased 12% QoQ Decreased 52% YoY Client $ 1.2 $ 0.8 IIIII Q1F23 Q2F23 Q3F23 Q4F23 Q1F24 Revenue $ 1.1 billion Increased 11% QoQ Decreased 7% YoY © 2023 WESTERN DIGITAL CORPORATION OR ITS AFFILIATES ALL RIGHTS RESERVED Consumer In billions $ 2.0 $ 1.6 $ 1.2 $ 0.8 $ 0.4 $ - Q1F23 Q2F23 Q3F23 Q4F23 Q1F24 Revenue $ 0.7 billion Increased 14% QoQ Increased 8% YoY

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