This PCIe to PCI Adaptor Card lets you use low profile PCI expansion cards in a server or desktop motherboard PCI Express slot. Compliant with PCI Express 
 Specification 1.0a & PCI 
 Specification 2.2,  the adaptor card connects through a PCIe 1x slot to provide a low profile PCI slot in its place. A spare full size bracket for PCI Express card is also included for use in larger desktop or server PCI Express slots. A versatile solution,  the Adaptor card converts PCIe to PCI or PCI-X,  a built-on LP4 power connector links the card to the computer power supply,  allowing you to install universal voltage PCI cards (3.3V/5 V.).