Look through the internet, you will find pinout. Here's what I found here

Output:

Pin1,2 = +3.3V === 6A

Pin3,4 = COM 

Pin5,6 = +5V === 4A

Pin7 = -12V === 0.6A

Pin8 = +12V === 2A

But for sure you will need to ensure that it is really that power supply, that it is not faulty. I guess if something wrong will happen to breadboard, manufacturer will be refusing from warranty obligations because you did not use recommended power supply (if such was recommended by them). Thus think twice before re-using it.

Look through the internet, you will find pinout. Here's what I found here

Output:

Pin1,2 = +3.3V === 6A

Pin8 = +12V === 2A

Edit: thanks for posting the picture. It is not that one I found :P

I guess if something wrong will happen to breadboard, manufacturer will be refusing from warranty obligations because you did not use recommended power supply (if such was recommended by them). Thus think twice before re-using it.