Product Details Fangrui Product Details Pex 8112 Supports Forward And Reverse Bridges As Defined By The Pci To Pci Express / Pci-x Bridge Specification 1.0. In Forward Mode, Allows Legacy Pci Chips And Adapters To Be Used With The New Pci Express Processor System. Reverse Bridge Operation Allows Traditional Pci Processors And Chipsets To Configure And Control Advanced Pci Express Switches And Endpoints. In Contrast, The Pex 8112 Not Only Allows Downstream Pci Express Systems To Be Fully Configured From The Pci Bus, But Also Handles Limited Pci Express Root Functions For Reverse Interrupt And Power Management Events. Specification: Compliant With Pci Specification Version 2.3 Pci 32-bit Card For Pci Express X1, X4, X8 Or X16 Pci Express 1 Port (1 Virtual ), 2.5gbps Compliant With Pci Express Specification Version 1.0 Combination Low Profile Pci 32-bit Host Card Support Pci Slot 3.3v / 1a, 3.3vaux / 100ma, 5v / 5a And 12v / 500m Plug And Play Application: Server 2000 / Nt / Xp / Vista / Win 7, Linux Colour: As Shown Material: Pc+metal Package