We stock wireless network adaptors suitable for both laptops and desktops. Both laptops and desktops can also use a wireless USB adaptor, which simply connects to a free USB port.
A laptop uses a wireless PCMCIA card, to fit in a free PCMCIA slot in the side of the laptop.
A desktop PC uses a wireless PCI card, to fit in a free PCI slot on the motherboard (the cover of the PC needs to be removed to fit the PCI card).