Power supply.
It is the Coolermaster power supply that - albeit marginally - outperformed Corsair's RM in the same wattage category. And that says a lot.

I chose it after reading Aris's review when my old Corsair HX650 started failing.

https://www.tomshardware.com/reviews/cooler-master-v750-gold-v2-power-supply-review
https://www.youtube.com/watch?v=pPXUA4J-zZo

I have had it for over a month now.
It is FLAWLESS.
For now, it is in my old system, but soon it will be installed in a new Ryzen 5600 with a 3070 (probably). Its wattage is overkill for such a system, but I like the PSU not being stressed at all.
Personally, I run the fan in Hybrid OFF mode. It's not audible anyway. And I don't like the fan bearings starting and stopping unnecessarily.

Everything about this power supply screams QUALITY and RELIABILITY. From the moment you take it out of the box.
I was torn between this and the equivalent Corsair RM.
This specific one "won" me over because:

1) Coolermaster doesn't skimp on cables. Corsair, on the other hand... let's not go there. It's like the cables cost that much.
2) The length of the SATA cables is at least at the "psychological limit" for me. I mean the distance between one connector and the next on the cable. I would definitely prefer them to be longer. The equivalent RM... forget it.
Seasonic, on the other hand, is better in this aspect, if I'm not mistaken.
3) It "pushes" a little more on the 12-volt rail. It outputs 12.2 to 12.3, with no significant deviation.
Strictly speaking, although it is perfectly safe, this is not as good, for example, the RM doesn't do it if I remember correctly.
BUT, for old, worn-out, or overclocked systems, it is useful for the 12-volt rail to be slightly "pinched", because at worst, the circuits around or exactly at 12 volts will stabilize.
4) Overall, the list of positives, especially in terms of power, is endless.

5) For the quality, reliability, and 10-year warranty from one of the biggest brands, the price simply ASTOUNDS. It offers the same value for money.

And one negative?

All the cables are flat, even the motherboard's ATX cable. This can be a bit challenging for cable management, especially in mid-tower cases.

Overall, if you are looking for a GOOD power supply in the 750-850W range, this is a very strong choice, almost a no-brainer at around 100€.