Did you read the manual? On page three...
The commander works by plugging in your power supply to the
appropriate Input connections on the back of the unit. Variable inputs
(both AC and DC) can be used with any AC or DC transformer. Fixed
inputs from enclosed power supplies (like the “brick” found in M.T.H.
Z750 and Z1000 transformers) can also be used by plugging the brick’s
barrel connector into the Input barrel connector port.