This is a standard bench power supply for prototyping electronic circuits.
Its main feature is a selection of outputs at standard fixed voltages used in electronics. Because the outputs are fixed you do not have to worry if the voltage is correct, you just plug the wire in. It is quick and easy to use.
You will probably still need a conventional variable power supply to test circuits over a range of voltages – but this is the one that you will use for day-to-day development.
It features four fixed outputs with an overall 1 amp capacity:
+5V and +3.3V
+9V or +12V or +15V
-9V or -12V or -15V
Standard bench power supply – [Link]