It doesn't seem to matter how many outlets we have in the vehicle, we always seem to need more. Even with the vehicle we just got that has more outlets than our previous one did, it doesn't seem to be enough. We just all have entirely too many devices that require charging during road trips. Fortunately, this one adds another 3 outlets for USB charging cords. We have a road trip coming up and I know that this is going to be a huge help in the constant fight over who gets to charge thier device(s) at any given time. If I have done the math correctly, this will actually ensure that just all devices can be charged at the same time, without anyone having an issue. At least I hope I did my math right!