The data storage products maker expects first-quarter revenue in the range of $4 billion to $4.20 billion, compared with analysts' estimates of $4.22 billion, according to LSEG data.
The company expects adjusted earnings per stock in the range of $1.55 to $1.85, compared with estimates of $1.74.
Western Digital's fourth-quarter revenue was $3.76 billion, beating analysts' average expectations of $3.74 billion.
The adjusted earnings per per share was 88 cents, compared with estimates of $1.17.
Revenue from the company's flash memory business, which is expected to operate separately from its traditional hard disk drive unit in the second half of 2024, rose nearly 28% to $1.76 billion.
Rival Seagate Technology forecast positive revenue for its first quarter last week, driven by increased demand for memory chips from personal computer and data center customers.