With a TDP of 450W, the RTX 4090 GPU is not expected to be equipped with a blower-style cooling but such a card does exist.
The initial card was allegedly created by Manli; however, the company subsequently contacted Videocardz to refute these allegations. The card appears nearly identical to the leaked datasheet; however, it is not equally similar. This RTX 4090 has a blower-style fan and a 16-pin power connection. However, the card is restricted to 450W TDP and sold with a 3x-8pin power connection; in a particular instance, there was any doubt about its cooling capabilities (most RTX 4090 cards come with 48-pin, which unlocks 450W+ power).
Even with RTX 4090, the card’s price of 15,000 RMB (2,150 USD) is quite high. The latest lowest price for RTX 4090 in China is around 13,000 RMB, but several high-end bespoke models, such as Colorful iGame Vulcan, cost approximately 15,000 RMB. Therefore, this pricing is not particularly enticing, given that there are significantly superior alternatives.
A few years ago, blower-type coolers were the least expensive alternative for liquid-cooled bespoke systems. These cards are also utilized efficiently in multi-GPU clusters for complex computational workloads or anything that can efficiently execute CUDA. NVIDIA has its RTX workstation and data center GPUs for everything else, which is why board partners were instructed to abandon their ambitions for high-end blower cards.