This is the official Raspberry Pi WiFi dongle offering the best possible WiFi performance for its diminutive size.
This tiny wireless adapter is easy to use and easy to set up. If you are tired of dealing with all those messy wires to connect your Raspberry Pi to your network then this is the item you need.
It also works as a wireless access point, handy for configuring your Pi on the go.
(Please note that you may need drivers for other operating systems)