Wireless client adapters allow desktop and mobile computers to join and communicate on a WLAN. Adapters are typically available in PCI, PCI Express, Mini-PCI, USB, ExpressCard, Cardbus and PCMCIA form. This chapter provides details and sample images of three of the most commonly used adapter types: USB, PCMCIA/Cardbus, and PCI.
USB - These adapters are particularly useful for mobile users, allowing quick access for any machine with a USB port. They can be quickly set up and transferred between machines. The antenna is built into an integrated unit and the adapters are approximately the same size as a USB flash memory adapter:
PCMCIA/Cardbus - Designed for laptops, these adapters can have an integrated antenna; however, some models provide support for connecting an external antenna to modify signal requirements, or increase signal strength capabilities:
PCI - These adapters are available for desktop machines with a standard PCI slot. They typically have an external antenna attached, and provide support for connecting antennas for specific signal requirements, or for increased signal strength:
