Here’s is the actual PSU that came with my H9Max. The interesting thing is that they spec out an input max current of 200mA. This is also, or should be stating alternating current. Usually input current isn’t a spec always stated and this is rather low. Which leads to some confusion. What this should mean electronically is if there are other loads or the H9 itself on the same line and causing the line load current to exceed 200mA AC then strange things could start happening. Also this input rating is really only applicable to this specific PSU. The output specs are indeed 9Vdc @ 500mA center pin positive. Anyway I posted just to help clarify. It’s a bit confusing and why ratings and what will work especially when or if daisy chaining can get complicated.
