Is this a massive GeForce RTX 4090 Ti with a quad-slot cooler or an RTX 4090 prototype?

It's probably a prototype, but we could be looking at a potential four-slot cooler for a GeForce RTX 4090 Ti - a card that is still rumored to be coming.

Nvidia RTX 4080/4090's Power-Hungry PCB Design Allegedly Detailed

MSI & PNY Unveil 4+ Slot GeForce RTX 4090 GPU Coolers For Next-Gen Graphics Cards: New Heatsinks, TEC Cooling & More

Alleged Nvidia GeForce RTX 4090 Ti spotted with huge quad-slot cooler

NVIDIA GeForce RTX 4090 Ti & RTX 4090 Graphics Card Renders Point To 3-Slot Founders Edition Cooler For Next-Gen BFGPUs

Never Launched EVGA GeForce RTX 4090 FTW3 Graphics Card Breaks Cover, Was Supposed To Be A Massive Quad-Slot Monster

RTX 4090' Prototype Cooler On Sale for a Cool $120K

NVIDIA GeForce RTX 4090 Specs

RTX 4090 - tight power : r/watercooling

Teardown Of Prototype Cooler For Canceled 4090 Ti Reveals A Hidden Surprise