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VAIO® S Series Laptop

Model # VPCSB4AFX  |   change model...
This model is also known as:
PCG4121GL, VPCSB4AFX/B, VPCSB4AFX/W, VPCSB4AFXB, VPCSB4AFXW,

Serial Number Location: On the bottom, the back panel, or inside the battery compartment of your computer.