In desk USB 4-port hub fits in grommet hole on your desk

http://www.techchee.com/2009/07/08/in-desk-usb-4-port-hub-fits-in-grommet-hole-on-your-desk/in-desk-usb-hub-plugged-with-usb-devices/

In-desk USB hub plugged with USB devices
Most work desks come with one or more grommet holes for cable management. The In-desk 4-port USB hub simply fits in any one of the grommet holes. So, it will not take up any additional space on your work desk. And some more the USB connection to the computer can just run through the grommet hole, should present a neater way of connecting USB devices on your work desk.

in-desk USB hub connect up to 4 USB devices
The in-desk 4-port USB hub fits inside a 2-inch round hole, offers 4 USB 2.0 ports, it measures 65mm diameter by 31mm.

http://www.techchee.com/2009/07/08/in-desk-usb-4-port-hub-fits-in-grommet-hole-on-your-desk/in-desk-usb-hub-connect-up-to-4-usb-devices/