Have to admit the only things I have plugged into my hub is Rosie (my robo) and my external hard drive and they work together quite happily. As I only have 2 usb ports on the back of my main computer I have my hub plugged into one of them and my inkjet printer plugged into the other which means that I don't have to scramble about underneath the desk everytime I want to change something. The hub is placed on the desk in front of me as well which means no bending down when I want to plug in any other usb device.

I also have 2 usb plugs in the front of my computer but 1 of those is taken up by my laser printer