1. Use USB cables to connect each PM3 to a USB 2.0 hub.
2. Plug USB hubs into wall outlet (power mains)
3. Use USB cable to connect USB hubs together
4. Use active USB extension cable to allow computer to be more than 15'(5m) from computer.
Note: Not recommended for more than 14 PM3's
Note: Not more than 2 hubs and one active USB extension cable between the computer and any PM3.