The XU870 is a global ExpressCard that offers 3G Broadband wireless data service worldwide. The XU870 ExpressCard provides true global mobility since it supports HSDPA/UMTS and EDGE/GPRS throughout most of Europe or Asia Pacific. Roughly half the size and lighter than a traditional PCMCIA card. For use in mobile computing notebooks that support the ExpressCard 54 and/or 34 interface. An adapter is available for older notebooks that have a PCMCIA card slot. This caddie will allow the ExpressCard to easily fit in to the PCMCIA card slot.