Features: 1. High Charging speed. Both your PS4 concole and two controllers can be charged simultaneously. 2. Stay cool. Double cooling fan with excellent heat dissipation to prolong the life span of your PS4. 3. Have more fun. 3 HUB ports with powerful output for data transferring and charging. These USB Hubs are a great addition to your Entertainment System. FAQ: Why the fan sounds so lound? 1. Please check the stand has been put steady or not. 2. Please check you put the PS4 in place or not. 3. There may something stuck in the stand. Why my controller can't be charged? 1. The controller hasn't been plugged in completely as the case in it. 2. The controller isn't original.