This is an even better look at NVIDIA's new 12-pin power connector
12-pin GPU Power Cable
NVIDIA's new 12-pin power connector for RTX 3000 cards is spotted in the wild - NotebookCheck.net News
Expect To See Nvidia's 12-Pin Power Plug On Future PCIe 5.0 GPUs | Tom's Hardware
Purposed remedy for current 4090 power connector : r/nvidia
PCI-Express Gen5 12-pin power cable looks just like NVIDIA's - VideoCardz.com
This is what the next-gen 12-pin PCIe 5.0 power connector looks like
Amazon.com: Fasgear PCIe 5.0 GPU Power Cable Sleeved 70cm, 16pin (12+4) 12VHPWR Connector for RTX 3090 Ti 4070Ti 4080 4090, 3x8pin(6+2) PCI-e Male Plugs Compatible for ASUS EVGA Seasonic Modular Power Supply : Electronics
Nvidia 12pin, PCIe 5.0 GPU power connector and interoperability - HWCooling.net