美股存储板块盘前涨幅扩大，SK海力士涨超7%

The pre-market gains in the U.S. storage sector expanded, with SK Hynix rising over 7%, according to data from MSX.COM. Micron Technology rose 4.39%, SanDisk gained 6.18%, Western Digital climbed 5.25%, and Seagate Technology advanced 3.14%.