802.11B/G/N Nano USB Wifi Adapter (EDIMAX) for Raspberry PiPart number: VUPN8879
manufacturer part number: EW-7811Un
This tiny USB Wifi adapter is supported natively by Raspbian, and is perfect for adding wifi to your Raspberry Pi. It features compatibility with 802.11b/g/n wireless systems, and supports WPS, WPA2 and 802.1x. Don't take a chance with bargain no-name brand wifi adapters, the EDIMAX adapter is the most popular way to get the raspberry pi operating wirelessly.