The Glacier G40 GPU blocks bring the ultimate cooling performance with some unique water block features to build amazing water-cooled system.... Phanteks RTX 4000 Series Water Blocks
I understand they moved the fittings to the rear for vertical mounting but then, it's a niche of a niche product, don't know what they were thinking it's not a business, grab one while you can I guess if you're interested don't seem them making too many of them but that's my pov as my 3090 is just way too long with 330mm (super long pcb) and the several 4000 shown have a ridiculously short pcb which is way more practical and lighter because oh boy my liquid cooled with backplate 3090 is like 2.4Kgs >< edit : check the ichill 4090
What are you on, the ports at the rear looks way better. Compact gpu blocks with the ports sticking way out like the one you showed look awful.
I understand some want look above performance/efficiency but I want both so there are concessions to make and overly long gpus if they can be avoided help case airflow which is important when you have 3-5 M.2s