We Suggest 80 Plus Gold 1000W and above PSUs for NVIDIA GeForce RTX 3090 Ti
RTX 30 series what power supply do you need for the RTX 3090, 3080, and 3070
Fasgear PCI-e Gen 5.0 Power Cable - 70cm 16pin (12+4) 12VHPWR Male to Male Sleeved Cable with Combs - 600W Power Cable for RTX 3090Ti 4080 4090 4070Ti Graphics Card to ATX
Nvidia GeForce RTX 3090 Ti review | TechRadar
Nvidia's RTX 30 series AMPERE graphics cards' Power Supply requirements detailed