Wi-Pi is a high performance, cost effective WLAN USB module which connects the Raspberry Pi to a Wi-Fi local area network. Wi-Pi uses the latest 802.11n Wireless Technology. Wi-Pi also supports wireless roaming, ensuring a more consistent wireless connection to a wireless access point. Wi-Pi uses the latest international wireless CCA air channel detection technology, enhancing wireless performance.
WI -PI can only be used with Debian 6.0 or higher version of operating system. If you are running Debian based Raspbian “Wheezy” operating system already has Wi-Pi’s drivers’ built in, so the process of downloading the driver and installing it is not necessary.