Review on EZDIY-FAB RTX 3000 Series 12 Pin To Dual 8 Pin PCIe Sleeved Extension Cable 300 MM- Connector For NVIDIA Ampere GEFORCE RTX 3060Ti 3070 3080 FE Funder Edition- Black Red by Daniel Truett

Works and looks great with my 3090FE! Edit: I had an unrelated issue with my PC that I finally fixed after 3 weeks. During this process, I (and a few others) noticed that the pinout of the extension I bought was different. The Nvidia 3090 requires two eight-pin (up to 12-pin) connectors to power it. This extension is missing 2 pins (ground wire) on both 8-pin connectors. This is potentially dangerous and can cause problems, not to mention a fire. Until proven otherwise, I cannot recommend the use of this product. Update: Before posting my updated review, I decided to scroll down to the description of this extension. It turns out that this extension is deprecated for 3090. It should have been in the title. My recommendation remains the same as this can still cause a problem due to the pinout. Update: Based on the research I've done since my last update, the missing pins are only used for grounding. It should help with the energy supply, but it doesn't have to.