Travel multicharger 2-3-4S

I designed this charger because I had several Hobbyking chargers and when it came to charging they took up a lot of space and I had a lot of cables for the table. The box consists of a 10A to 12V power supply and 6 Hobbyking 2, 3 and 4S chargers with input voltage between 9 and 16V. It also has 2 USB charging ports with 1 and 2A and 4 fans that extract the heat generated during charging. The power supply is separated from the charger area in order to be able to cool independently. It has an EC5