Logitech make great wireless keyboards but the receiver dongle isn't strong enough to work from a rear usb port for me so i had to sacrifice a front usb just so my keyboard would work reliably. Well not anymore!
You will need:
Unused Pc case with usb pcb
Wire cutter & stripper
About 5 minutes
Step 1: Finding the Usb Pcb
Fire up your Soldering iron for the next step.
Step 2: Removing the Port
When you have it off use the original wiring from the port and solder it to the usb port matching my photo.
Step 3: Installing the Newly Made Usb Port.
Insulate the explosed usb port with glue gun or tape and glue to the case. Pop the front back on and your all done!