A PCI Express card is a component that can be installed in a computer to expand its functionality. The card is connected to the motherboard via the PCI Express interface and gives the computer new features that it did not have before. There are different types of PCI Express cards for different purposes, such as graphics cards, sound cards, network cards and USB cards.These cards are usually easy to install and can significantly increase your computer's performance and functionality. To use a PCI Express card, the computer needs to have a free PCI Express site on the motherboard and it is also required that the card is compatible with the other components of the computer. At Nördic you can find PCI Express cards that are compatible with most motherboards and operating systems.