If you’re one of those that need a few USB ports to power up or connect all sorts of devices but you don’t have enough, I guess you need a hub. Maybe the Dr. Bott T3 USB 2.0 hub can help you with three ports for a mere $20. It has three LEDs that shows which ports are used and a fourth LED to tell you when the hub is powered. The Dr. Bott T3 USB 2.0 hub comes in silver and white and would look great with your MacBook Air.via Zdnet