The PCI1PEX1 PCI to PCI Express Adapter card lets you use low profile PCIe expansion cards in a server/desktop motherboard PCI slot. The adapter connects through a 32-bit PCI slot to provide a low profile PCIe x1 slot in its place; a spare, full size bracket is included for installation in larger desktop or server expansion slots that can accommodate a full-sized card. The PCI to PCI Express Adapter features an innovative bracket design that adapts and secures the low profilePCI Express card into the converted slot, ensuring a versatile and economical solution for extending the usability of older PCI motherboards or using low profile PCIe cards that do not have PCI equivalents. Innovative bracket design adapts and secures the existing low profile/half-height bracket of the PCI Card PCI revision 2.3 compliant with up to 133MBps of available bandwidth LP4 Power Connector Included for Universal Voltage PCI Cards (3.3V/5V) Compliant with PCI-to-PCIe Bridge Architecture Spec Revision 1.2 No driver or software installation Applications Use newer PCI Express cards on an older PCI-only system Install a low profile/half-height, PCI Express card into a full profile PCI system Upgrade expansion cards without having to upgrade the system Advantage The unique bracket design allows a low profile/half-height PCI Express card to work seamlessly in a PCI-based expansion slot Backed by a StarTech 2-year warranty and free lifetime technical support