pcx slot

e.g. Pin #1 on the PCI-Express slot is +12v power, while Pin #82 on the other side of the slot is Ground. "Regular" PCI and PCI-Express are not directly compatible with one another. Size of the slot, pin count, pin arrangement, and power/voltage are different. That said, a PCI-E X1 card will work in a PCI-E X1, X4, or X16 slot. Like so: asiabet slot