Features: 1.SM1083 PCI Express X1 to PCI 32 bit bridge card enables users to connect traditional parallel bus devices to the advanced serial PCI Express interface. 2.The card can be easily installed and powered from the PC power supply through the included 4?Pin connector. 3.Operating system supports for Windows 2000/NT/2003/XP/Vista/2008/Win 7/Linux. 4.The power of the extended PCI add?on board is powered by a standard ATX power supply, or from an external power supply (+12V and 5V) through the PCI backplane. 5.This riser card converts a standard PCI?E 1X interface card into a PCI interface. specification:Item Type: PCI?E Express to PCI Adapter PCI Express Base Rev. 1.0a / 1.1 PCI bus power management interface Rev.2.0 PCI Express Card Electromechanical Rev.2.0 PCI Rev.3.0 PCIE to PCI / PCIX Bridge Rev.1.0 PCI Express PCI Express X1 channel, 2.5GHz signaling SSCECRC and advanced error reporting functions 100 MHz differential PCI Express reference clock input Maximum payload size is up to 128 bytes PCI Function: Supports 33 MHz PCI bus Support CLKRUN PCI Power Management: The power of the extended PCI add-on board is powered by a standard ATX power supply, or from an external power supply (+12V and 5V) through the PCI backplane. PackageList: 1 x USB3.0 Connection Line 1 x 4Pin Power Cord 1 x PCI-E Card 1 x PCI Card