mPCIe Slot Pinout with +5v?

Title: PCIE X1 EDGE CONNECTOR - BOARD OUTLINES ; Package: PCI-X_EDGE-X1 ; Description: PCIE X1 based on guideshardwaregraphic20080421

I was reading the mPCIe pinout of BPI-R2 and noticed this: And according to the mPCIe , pin 48 should be + instead of +5v,

pcie 1 slot Not directly, because laptops don't provide exposed PCI Express slots Connector pinout differences Do models 826 and 626 have the same

pcie m2 slot Host Adapters ; PCIe Host Port PCIe x16 Edge Finger ; Internal PCIe Port Two SFF-8654 8x 85ohm 74pin Connectors Connector Pinout ; Switch for enabling REFCLK