The USB Card is a card that plugs into the PCI bus of a computer to provide USB ports. These can be in addition to the existing USB ports you may already have. A USB Card can provide either USB 1.1 (12 Mbits/second) or 2.0 (480 Mbits/second) ports depending on its specification. We also stock PCMCIA USB cards, this is the card that fits a standard cardbus or PCMCIA bus. Mostly used in Notebooks, they can be easily installed and removed. If you only have a single bus slot, this can be a problem if you have a PCMCIA modem or Ethernet card.