Personal Computer Memory Card International Association (PCMCIA) cards are frequently referred to as PC Cards or as ExpressCards. Although manufacturers produce PCMCIA slots for desktop computers, most PCMCIA users are laptop computer owners. Most recent PCMCIA cards are plug-and-play compatible, meaning that Windows will automatically detect and install the appropriate drivers after you insert the card into the slot on your computer.Sierra Wireless MC5725 PCI-E CDMA WWAN Modem Card Original
If you have a plug-and-play device and do not need to install special software, as with mobile broadband modem cards, simply insert your modem card into your PCMCIA slot and allow Windows to detect and to install the drivers for the card.
Installing a Mobile Broadband Modem
Boot up your computer. Insert the installation disk that shipped with your PCMCIA modem card or download and double-click the required software for your card.
Follow the onscreen prompts to begin the installation.150/300Mbps 802.11n PCI Wireless LAN Card with Antenna
Remove the PCMCIA modem card from its antistatic packaging. Insert the card when directed to do so by the installation program.
Allow Windows the opportunity to detect and to install the drivers for the card, then finish the installation.
Install Non-Plug-and-Play Modems
Insert your PCMCIA modem. Click on "Start," then "Control Panel." Click on "Classic View" in the left column if applicable.
Click on "Install the hardware that I select manually from a list." Press "Next."
Select "PCMCIA adapters." Click "Next."
Select the manufacturer in the left column and the model in the right column, then click "Next" and follow the onscreen prompts to complete the installation. Press the "Have Disk" button if you do not see your manufacturer and model, then navigate to and double-click your PCMCIA modem card's driver.