That's a bit over the top. We previously wrote about Gigabyte’s UD1000GM power supply. It includes a 12-pin connector with the extra four signalling pins, but we note that it supports ATX 2.31 only.

Today Luke gives his analysis on the asus tuf Gaming B550M Plus Micro atx motherboard. Can it justify the high £185 asking ...

The new GALAX HOF GF1300 power supply is a next-gen ATX 3.0-ready PSU with not one, but two 16-pin '12VHPWR' power connectors, ready for your RTX 4090s.

IIRC the EPS12V connectors have compatible pinouts compared to ATX12V. The 24-pin connector has the same pinout on 20 pins as the ATX 20-pin connector, then it has an additional 4 pins on one end.

Power supplies are a little more complex than they seem, and with the new ATX 3.0 standard, they're getting even more so. Check out this PCWorld guide to the PSU on YouTube!