It's really quite simple. In the process of making smaller laptops with smaller parts, You got stuck with an Express Mini 34 wireless evdo/umts/hsdpa adapter that only works on your new Dell or Vaio or other new hip cutting edge laptop. Trouble is that your evdo router and older computers don't know what the heck an Express Mini 34 card is. So, thankfully, since the Mini Express cards and the pcmcia cards are both still 32 bit compatible, all you need is the adapter sleeve you see above.

All this sleeve does is takes the 32 pins from your Mini Express card and spread them out to 32 pins that will simply fit into your laptop or 3g mobile wireless router. It's not a big deal. It's just an adapter. Order it to get full backwards compatibility with other laptops and routers that don't have a Mini Express 34 slot. It's that simple.