Adaptec AUA-1420 CardBus USB Enhanced Host Controller: Our High-speed 2-port USB CardBus Adapter lets you take advantage of the most current high-speed devices without compromising the connectivity with your existing ones. Along with the dramatic increase in speed you'll also appreciate that our solution doesn't require a heavy and bulky power supply as it is powered directly from the USB ports. This becomes especially important while traveling. No need to pack that extra bag.Enhance your computer's portability and performance with USB2connect for Notebooks