Why should Intel pushing PCI-E card?

Intel pushing PCI-E NIC specifications card, then what is the magic of PCI-E? The original PCI Express is the PCI bus, after a new industrial bus standard, PCI-E version 3.0 has been developed. PCI-E technical standards support connection between equipments from one channel to the 32-channel, and support 250M / s to 4GB / s transmission speed, strong scalability to meet the different needs of data transfer bandwidth between different systems equipments. In addition, the pci-e card can be inserted into the long PCI-E slot, the lower pin will be great savings in hardware costs, and greatly benefit the electronics manufacturing industry in the future, PCI-E can support hot-swappable. The evolution of the PCI Express bus technology, in fact, is the evolutionary process of the computing system I \ O interface rate. With the further development of computer and communication technologies, a new generation of I \ O interface in large numbers, such as Gigabit (GE), Gigabit Ethernet (10GE) technology, 4G/8G FC technology, making the bandwidth of the PCI bus have been unable to meet the requirements of a large number of high-bandwidth parallel read and write within the computing system. The PCI bus has also become the bottleneck of system performance, so PCI Express bus comes into being. The PCI Express bus technology has been widely applied in today's new generation of storage systems.