If you’ve managed to get your hands on one of the rare RTX 5090 GPUs, it’s easy to become enamored with the idea of high-quality power cables. However, the renowned power supply expert Aris Mpitziopoulos, CEO of Cybenetics, offers a strong warning: “Do not buy adapters or extenders. They can all be dangerous.”

He elaborates that using inadequate adapters can lead to overheating issues, especially since the RTX 5090 demands a hefty power draw of 48 amps or more under full load. The recent 12VHPWR connector, despite being promoted as a ‘fixed’ version, still poses risks if not used with the correct cables.

Mpitziopoulos assures that native 12V-2x6 cables are designed to safely accommodate such loads, provided they are correctly set up with compatible power supply units (PSUs). He cautions users against third-party extenders claiming they may not work correctly with your setup.

As upgrades become increasingly powerful, it’s crucial to ensure that you have the right PSU, potentially looking at units that come with a dedicated 12VHPWR socket. This can not only help prevent damage to your components but also ensure stable performance across your setup.

In summary, investing in quality hardware is vital, but caution is necessary when choosing additional components. Stick with manufacturer recommendations to keep your powerful GPUs operating safely.