fellas...
Most new PC motherboards will have a bank of jumpers that can be attached to an "external" (ie off mobo) USB socket/s... eg either on a backpanel plate or on the case front somewhere.
I just took that backpanel plate and attached it inside the case... put your dongle inside on there if you wish.
My work box has internalised the wireless receiver for KB/M & USB stereo speakers... so the only physical wires left outside are Power & Monitor.
(wireless power... new invention usually appears in 4 wks... 1st April

)