This GPU Strimer wireless 12V-2x6 wide cable is designed for the 12V-2x6 connectors of high-end graphics cards, but there is a known incompatibility with the NVIDIA GeForce RTX 5090 Founders Edition. This is because the 12V-2x6 connector on some Lian Li products, notably the Edge series, is wider and does not fit correctly into the RTX 5090 FE socket due to the angle and depth of the connector, preventing a full lock.

However, some users report that this cable can work with non-Founders Edition RTX 5090 models, but it is advisable to check the specific compatibility of your card and to remain cautious, as the socket can heat up under heavy load.

In summary, this cable is not guaranteed to be compatible with the RTX 5090 Founders Edition due to the connector design, but could work with other versions of the 5090. We recommend waiting for official confirmation or using the cable supplied with the card to avoid any risk.