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USB Desk Fan 3 Speeds LS-907
Brand: Generic / OEM
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Audited BOM: 7 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The undersized motor (ENG-001) leads to overheating and premature failure, resulting in RMA (RMA-001) and customer complaints (REV-002, REV-004).
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