Why is PSU end of ATX socket 20+4?
Normally that is what 20+4 pin means, it can work with either 20 or 24 pin socket on the motherboard.
Some of the 24 pin connectors you can slide off or unclip 4 from one end, its hard to see sometimes, look close. When you buy a new 20+4 PSU sometimes they are joined already sometimes not.
If you get a 24 pin only, use an Adapter (Example link only, they can be bought cheaper other places)
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