Soundcards are a great upgrade if you want your games and movies to sound better – or if you’re interested in audio production. They interface with the computer via either PCI or PCI-Express connections, though some can also connect via USB. Typically, they have 2.0, 2.1, 5.1 and 7.1-port configurations on their backplates. These don’t have to be an expensive upgrade, but make sure you’ve got a spare slot on your motherboard first.