压缩包内含以下文件:1.PCI Express ® Base Specification Revision 2.1 _2009_.pdf2.PCI Express ® Base Specification Revision 3.0 _2009_DRAFT对比版.pdf3.PCI Express ® Base Specification Revision 3.0 _2010_正式版.pdf4.PCI Express ® Base Specification Revision 1.1 _2005_.pdf