old style pci slot is different from PCI3 slot

[AussiJoe]

I have just bought a PCI Express USB3 card and it wont fit in a standard PCI slot. A different offset distance and a blocking piece so that it cant be inadvertantly fitted.
Is there any way that it can be adapted to fit the standard PCI slot?

 

[alexoiu]

There are adapters https://www.amazon.com/StarTech-com-Express-Adapter-Card-PCI1PEX1/dp/B0037ECAM2, but it depends on the adapter you bought. I suggest returning it and getting a card like https://www.startech.com/au/Cards-Adapters/USB-3.0/Cards/4-Port-PCI-SuperSpeed-USB-3-Adapter-Card-with-SATA-SP4-Power~PCIUSB3S4

 

[Gam3r01]

Well you just said its a PCIe card in a PCI lane, those are not compliant with eachother.

What specific card and motherboard do you have>