VideoCardz - GALAX GeForce RTX 3090 Ti Boomstar pictured with PCIe Gen5 power connector
 
“GALAX Boomstar is the China-exclusive series featuring typically 2.5 to 3-slot translucent cooling solutions. It appears that that we finally have a confirmation that even the custom RTX 3090 Ti models will ship with the new power connector, namely the 12+4 (or 16-pin) PCIe Gen5 connector delivering up to 600W of power.
 
We can immediately see that the heat sink was specifically adopted for this design. Compared to the RTX 3090 Boomstar, the Ti model will only make use of a single 16-pin connector instead of two 8-pins.
 
The PCIe Gen5 connector can deliver up to 600W of power, but this requires 4 data pins to be present. The leaker picture confirms just that, which means we are looking at the next-gen GPU power delivery likely to be adopted by all new cards in the coming years.
 
GALAX RTX 3090 Ti Boomstar is expected to launch on March 29th as one of many custom designs. This model is to feature full GA102 GPU with 10752 CUDA cores, 24GB of 21 Gbps GDDR6X memory and a TDP of 450W. It is very possible that maximum power requirement will be higher for custom designs such as this.”
 
My thoughts:  This will probably be one of many leaks in the coming days.  The power connector we knew was coming.

529th
I hope there will be some sort of backwards compatible adapters with existing PSU GPU connectors.

That is the big question everyone has been debating.  Guess we will have to wait until the 29th when the embargo gets lifted.  My guess would be no, and we may see a whole new slew of next gen PSUs coming out in the coming months... I think we have already heard of at least 2 MFGs with next Gen PSUs.

I can see EVGA  and Seasonic offering these new cables for sale to older gen PSUs.  I'd hate to see both of my PSUs become obsolete.

529th
....I'd hate to see both of my PSUs become obsolete.

No joke, we need to be able to keep using our current power supplies.

I would assume that it will at least be for this generation have an adapter. Nobody has those PSU yet and to make it required would just make it impossible to find the PSU that supports them even if you get lucky enough to get the card.

Looks like this connector will work with the previous adapter cable that comes with the 3090 FE, but you'll be limited to 500w when using the older adapter cable.

DaboInk

Sajin
Looks like this connector will work with the previous adapter cable that comes with the 3090 FE, but you'll be limited to 500w when using the older adapter cable.

I see 529th mentions in another thread that Toms Hardware article author (mentioned above) says that 600w will only be for water cooled cards.   
 

Whoops, yeah got the threads mixed up, hehe.
 
When the two sensors are set to ground it will allow the 600w profile, according to Aris.  Really good read