[Elecraft] k3 switching supply

[MontyS]

On Amazon.com for under $24.00.

Monty K2DLJ

You will find this power supply under many labels.  Here is one in the US. 
http://www.lightobject.com/DC-12V-29A-Switching-Power-Supply-Good-for-CNC-stepping-motor-and-Ham-Radio-P442.aspx. 
DC 12V 29A Switching Power Supply. Good for CNC stepping motor and Ham Radio

  Notice the physical layout and general labeling is Identical to you 
Megawatt unit, this one is Coldfusion.  Like the Megawatt, very little RFI. 
This one has the thermal sensing on the fan.