Other components such as video cards, sound cards, CD/DVD drives, power supply etc. can also be swapped if both computers use the same general type of slot or connectors for a particular device. For example, if one computer has an AGP video card, that card could be moved to the other computer if it also has an AGP slot; if not, then the card could not be transferred. And, of course, depending on the device, drivers may need to be installed on the receiving computer.