The gigabit pci express network card is a high performance network adapter it supports the pci express bus architecture which provides faster throughput than the current 32 and 64 bit pci bus architectures and there is no need to switch to fiber optic cable the intellinet network solutions gigabit pci express network card allows you to run gigabit speeds over your existing copper wire network cablefaster throughputthe pci express host interface supports throughput rates of up to 2 gbps wh