I bought this as a power supply for a single board computer, and was disappointed that it does not fit the socket so I will have to change the attached DC connector to a larger size. The DC power connector in this unit has the following dimensions:
Outside diameter, 3.5 mm; Inside diameter, 1.30 mm.
I'm posting this because the power connector size is not disclosed in the product specifications published by Amazon. The unit looks robust and well made. It is sealed, so I can't look inside for internal parts quality or construction.