Electronics > Video Surveillance > DVRs
4 Channel 1080N DVR SIGMA-D104B
Brand: Generic / OEM
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Audited BOM: 15 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 heatsink (ENG-001) causes overheating, leading to freezes and frame loss (RMA-002), which is reported by users (REV-001, REV-003).
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