The Belkin USB Hub fits the Macbook (white) and the iMac perfectly. I think the design is really nice. It is a 4 port USB 2.0 Hub with 3 ports in the back and one port as a top-loading port. This port is especially useful if you own a 1. generation iPod shuffle. This port is also very nice to have to copy small files on a USB stick or for devices you only use occasionally. Also to be mentioned you do not need any drivers to use this hub with a Mac in OS X. It's simple plug and play and up until now I didn't experience any problems with it. The hub is shipped with an external power source also if you plan to connect multiple power hungry devices. If this is not the case for you, you can use the hub without the extra power supply too. There is a little green LED beneath the plastic at the top that switches on when it's ready to be used. One little complain I have is that the hub itself is really light (weight wise). You can see in the second picture that the hub lifts off the table if you use all the ports in the back and place it at the edge of a table. Other than that there is no reason not to buy this hub if you're looking for a stylish hub to go with your new Mac. The street price of this hub is around 20Û so it is not too expensive for a hub with an included external power supply.