ExpressCards provide additional memory, wired and wireless
communications, multimedia and security features. For example, you can add
an ExpressCard to make wireless wide area network (WWAN) connectivity
available on your computer.
ExpressCards support two form factors:
ExpressCard/34 (34 mm wide)
ExpressCard/54 (54 mm wide in an L-shape with a 34-mm connector)
The 34-mm card fits into both the 34-mm and 54-mm card slots. The 54-mm
card only fits into a 54-mm card slot.
See "Specifications" on page 205 for information on supported ExpressCards.
An ExpressCard is not a bootable device.
Your computer shipped with a plastic blank installed in the ExpressCard slot.
Blanks protect unused slots from dust and other particles. Save the blank for
use when no ExpressCard is installed in the slot; blanks from other computers
may not fit your computer.