ATX Version 3.0 Multi Rail Desktop Platform Power Supply Design Guide

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Exact named pinout variant only; not capability or compatibility approval.

Mechanical > Connectors > DC Connectors > PCI-Express Add-in Card Connectors, 12VHPWR subsection, Table 5-7: PCIe 12VHPWR Auxiliary Power Connector Pin Assignment (600 watts); Figure 5-4: 12VHPWR Cable Assembly

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2026-10-21

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Source scope and unresolved evidence are preserved in the engineering variant.

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