ATX Version 3.0 — Main Power Connector pin-out

Scope and location

Engineering-sidecar source for the 24-position ATX main-power logical pin assignments and the documented 24-pin Mini-Fit Jr.-family connector reference.

Table 5-1 Main Power Connector Pin-Out

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Inspected

2026-10-05

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Recorded AI-assisted source inspection; not independent human approval or hardware testing.

Logical assignment table only. V37 does not treat the normalized schematic as a mating-face drawing, fabrication drawing, cable-construction approval or replacement/repair instruction.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.