4-PIN ATX to 8-PIN EPS converter

I have these old power supplies using 4-pin ATX connector to the CPU pin on the motherboard.
All my latest motherboards use 8-pin EPS connector. Luckily you can buy an adapter for it from Shopee.
Two for RM11 including postage.

https://shopee.com.my/product/62782098/1328768248

Howerver, after watching another Youtube video, I don't actually need the adapter.
Just connect it to the left side of the key notch. I verified it and it worked. I wasted RM11.