Which laptop expansion card connects to PCI and USB?

Which laptop expansion card type connects to both the PCI and USB bus and comes in both 34 millimeter and 54 millimeter sizes??

A) PCMCIA

B) PC Card

C) CardBus

D) ExpressCard

The answer: D) ExpressCard

The ExpressCard standard expanded on the CardBus architecture by connecting to both the PCI bus (over a PCI Express x1 lane) and the USB 2.0 bus of the laptop. This provided a large bandwidth increase over other card types and provided options for 34mm and 54mm laptop expansion cards.

Want to know more? Watch “Laptop and Portable Technologies.” Although laptop and portable devices often provide similar functionality to desktop PCs, there are some important differences to consider for the CompTIA A+ exam requirements. In this video we’ll discuss some of these differences such as form factors, expansion slots, input devices, and power.