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5W 1200mAh USB-C Mini Desk Fan LS-931
Brand: Generic / OEM
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Audited BOM: 8 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Low-quality motor (ENG-001) generates excessive noise, leading to customer complaints (REV-001) and returns (RMA-003).
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