At Macworld 2008 there was a special USB hub presented by Belkin, it is called the Travel Hub and costs $30.

What makes it special? Being able to swivel and rotate 180 degrees, therefore it doesn’t occupy the space of other ports you might want to use. For laptops that don’t have many USB ports, this Belkin accessory is certainly a good option, because it bring 4 new ports to the system.

You can maintain access to existing ports on your computer by rotating the Hub left, right, up, and down-whichever position works best for you.

Photo source - Nicole Lee on Flickr