What is the 4 pin connector on the power supply?

Related questions

1. What ATX means?
2. What is in a power supply?
3. What is ATX airport?
4. Which operating systems can be installed on mini ITX motherboards?
5. Can you plug a 20 pin power supply 24 motherboard?
6. Will an ATX power supply fit a Micro ATX motherboard?
7. Why do you need a power supply?
8. What is ATX city?
9. What is the difference between AT and ATX power supply?
10. Is power supply compatible with motherboard?

Tags

1. #motherboard
2. #connector
3. #standard
4. #processor
5. #voltage
6. #power
7. #supply
8. #regulator
9. #provide