UPDATE YOUR SYSTEM Use your current PSU with a new graphics card The 600W rated adapter cable is your entry to the new era of graphic cards. Offering compatibility to the latest graphics cards with more→12VHPWR 12+4 pin connector, it is the very best solution to operate a high-end graphics card with a ATX 2.X PSU of be quiet! – if compatible. It replaces the bulky standard adapter of your graphics card. COMPATIBILITY Compatible with the Dark Power 12 series, Straight Power 11 series and Pure Power 11 series. For the NVIDIA GeForce RTX 4080 you'll need 750W or greater, and for the NVIDIA GeForce RTX 4090 you'll need 850W or greater.