The product is very good with a big transformer (Cubs are to flee). Moreover it runs perfectly with USB 3.0 iMac 2012 even standby external drives work which is not the case with my previous Trendnet USB 3.0 Hub. By cons: it lacks the status LEDs above all, the 2 charge ports are only 5V load, they do not communicate with the computer so that you have staffing 6 Ports.