How do you figure that 15 watts is WAY MORE THEN ENOUGH. That is just 3 amps. And, 3 watts is about .6 of an amp. Are you only powering a single device?Originally Posted by spdyscotty
According to some powe supply calculators, each USB device is an amp (5 watts), that means the most you can connect to that PS is 3 USB devices. Perhaps you only have 3 or less, and then you are golden. But, if you have more (My 4 port hub I think is full) that might not be enough.
Now, the last time I responded to a post of yours, some of us discussed a 5 amp 5volt PS, that is 25 watts. That should be enough for 5 USB devices.
Also, Optical drives and Hard drives draw about an amp each, if not more. That is at least 10 watts. You are seriously gonna be getting close to that max. Add a Mouse, or GPS receiver, and your probably done for.