How to correctly interpret the designations on the pin connector?

Question

Power Supply

Good evening! I bought a Be Quiet cooler to replace it. But the wire is completely black. But there is a marking on Pina itself. + - and speed control. I just can't figure out which is which. the cooler is changed in the PSU. There are two pins. Can you tell me which one should be connected?

The photo from the phone is not loaded. According to the markings:

A unit that lies on its side with the tip up (I hope everyone will understand)

JSW

2510

Answer 1

Thanks for the answer. Read about the color scheme. All this is understandable. The issue is that it is completely black. All three wires were only markings, the meaning of which I don’t really understand. I already launched the method of scientific poke. So far, everything is working stably and without interruptions.