Introduction In the world of wireless networking, few components are as ubiquitous yet misunderstood as the small USB dongle. One of the most common chipsets powering these budget-friendly adapters is the Realtek RTL8188FTV Wireless LAN 802.11n USB 2.0 Network Adapter . Whether you are reviving an old desktop PC, fixing a broken laptop Wi-Fi card, or building a Raspberry Pi project, chances are you have encountered this little green board.