Using dblr for 400ma and 100ma port for 1 H9 pdl @ 500ma

[steffen99]

Can I use a doubler cable to attach to a 400ma and 100ma port to power my H9 which is 500ma on the 4x4 power box

[JohnClark]

Yes, using the Current Doubler Adapter (the one with the Green end) this way will provide 500mA, however the H9 will be just fine powered from a single 400mA output... no adapter cable is necessary.

I hope that helps!