When using a mix of PM3's, PM4's, and PM5's that need to be more than 15' from the computer:<br>
1) Connect each PM3 with USB cable to USB 2.0 Hub. Plug hub into power outlet.  <br>
2) Connect USB hubs together where needed, and connect them to the computer.  <br>
3) You may use "Active USB 2.0" extension cords that are 15' long to attain longer distance<br>
4) There should be no more than 2 USB hubs and one Active Extension between a PM3 and the computer.<br>
5) Connect all PM4's and PM5's together with Ethernet cables. <br>
6) Add one spare PM4 or PM5 monitor to the table with the computer and connect it to the other PM4/5's with an ethernet cable<br>
7) Connect this spare (Primary) PM5 to the computer using a USB cable.<br>