Plugable USB 2.0 Wireless N 802.11n 150 Mbps Nano WiFi Network Adapter (Realtek RTL8188CUS Chipset) Plug & Play for Windows, Raspberry Pi and Pi2, Linux
You love your laptop, but its WiFi network adapter is on the fritz or you're stuck with an old and slow Wireless G or B card. You could try to get it upgraded or repaired, maybe plunk down a few hundred dollars for a new computer, but there's an easy, inexpensive option that will get you back on the network in no time: a USB-based WiFi adapter!
The Plugable USB-WIFINT wireless N adapter sticks out just a quarter inch when plugged into a USB slot. It offers 802.11n wireless N connectivity up to 150 Mbps in an incredibly small package.