Here are two cable extension solutions that we have had good results with in our internal tests.

Extension via AOC (active optical fiber) cable

Please use the following product if you want to extend USB cables with a AOC-cable. 

Please note that this cable will only work with USB 3.0 cable to PC (host device). 

If you connect this cable to a Konftel OCC hub you have to make sure that the USB cable from the OCC hub to the laptop is a USB 3.0 cable.

Extension via Ethernet

If you want to extend the cables via Ethernet cable you can use the following product.