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While based on voltage the Hobby King looks appropriate, I would be worried about things like ripple being out of spec which could lead to hardware damage. The AC-DC brick you posted would likely be more appropriate. Other options include the Lulzbot PSU which is a Meanwell 500W in a custom enclosure or alternatively you can get the Eurocom 780W. You can also use the Dynamo with two bricks of indentical voltage. The most obvious one would be to plug an HDPlex 160W AC-DC into the Dynamo Mini and the HDPlex 300W AC-DC into the Dynamo 360. This would give you a total for 460W on two separate units. Alternatively a 240W Dell brick to the Dynamo Mini and 330W Dell brick to the Dynamo 360 would be another valid combo provided output voltage on both units is identical.