Currently not available.

Model # VPCSB31FX  |   change model...
This model is also known as:
PCG4121GL, VPCSB31FX/B, VPCSB31FX/L, VPCSB31FX/P, VPCSB31FX/R, VPCSB31FX/W, VPCSB31FXB, VPCSB31FXL, VPCSB31FXP, VPCSB31FXR, VPCSB31FXW,

Serial Number Location:  Currently not available.