PCI-SIG PCI Express CEM Spec
PCIe 6-Pin Graphics Power Connector Pinout
The 6-pin PCI Express auxiliary power connector supplies up to 75 W of dedicated +12 V power to add-in graphics cards with integrated Sense detection pin circuitry.
Pin assignment
- Power
- Ground
- Control
Schematic face view, not to scale · numbering per PCI-SIG PCI Express CEM Spec
| Pin | Signal | Function | Status |
|---|---|---|---|
| +12V | +12 VDC Graphics Power Rail | Standard | |
| +12V | +12 VDC Graphics Power Rail | Standard | |
| +12V | +12 VDC Graphics Power Rail | Standard | |
| GND | Ground Return | Standard | |
| Sense | Sense: connected to ground in the power supply (or by a jumper to an adjacent ground pin), so the card detects the plug and may draw up to 75 W | Standard | |
| GND | Ground Return | Standard |
Pin details
Select a pin on the diagram or table for full details.
About this connector
Standard 6-pin PCI Express auxiliary power connector providing three +12 V lines, ground returns, and Sense connection for 75 W GPU power delivery.
Specifications
- Standard
- Molex Mini-Fit Jr. 6-pin (2x3)
- Positions
- 6
Primary sources
- PCI-SIG PCI Express Card Electromechanical (CEM) Specification, Table 4-2 "6-pin Auxiliary Power Connector Pin Assignments (75 W)"
- Intel ATX Version 3.0 Multi-Rail Desktop Platform Power Supply Design Guide (doc 336521 rev 2.1), Tables 5-4, 5-5 and 5-6: PCIe 2x3/2x4 auxiliary power connector pin assignment and sense pin decoding
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