The Guru of 3D published a review on the Corsair RM750i Power Supply
A quote from the article:
We review the Corsair RM750i GOLD power supply. This silent RMi series PSU comes Gold certified, that means it's 90% efficient at 50% load. Efficiency matters. The PSU itself is fully modular, for most of you with a side panel window in their chassis a must really as you'll want modular cables. The new PSU also improved on the audibility front and through Corsair LINK software you can even configure the 12V rails in a single and multi rails. This 80 Plus Gold certified power supply has silent Zero-RPM fan operation, Corsair Link customization and monitoring. The product comes with solid capacitors, and fully modular cables. The PSU is cooled with a 140 mm fluid-dynamic-bearing fan that will only spin up when the PSU needs to and operating virtually silently at low and medium loads.Corsair RM750i Power Supply Review @ Guru3D
Combined with Corsair LINK software you can now even customize the PSU fan speed or switch from a default multi-rail +12V power delivery to a single rail power delivery.
This silent RMi 750 comes Gold certified, that means it's 90% efficient at 50% load. Efficiency matters. The PSU itself is even 100% modular, for most of you with a side panel window in their chassis a must really as you'll want modular cables. The PSU also improved on the audibility front. Have a peek at the article. Efficiency matters; years ago PSUs were as low as 70% efficient, meaning that 30% of the used power simply vanishes, whilst you are paying for it on that electricity bill. If your components eat away 500W then with that 70% efficient product you'd actually use 650W. The PSU itself is 100% modular as well, for most of you with a side panel window in their chassis a must really as you'll want modular cables.