PCIe 5.0 Extension Cable: Designed for GeForce RTX 3090Ti and RTX 4080 4090 GPU. No need to replace the power supply,just connect to the old 4*8Pin modular cable to convert to 12+4pin cable;
PCIe 4x 8P female - 16P(12+4): The 4x 8 pin PCIe female ends to plug into the PCIe 8 pin male cable of the non-modular or semi-modular power supply (Note: All of 4 pcs 8 pin ends must be connected when to use. The 4 pcs 8 pin ends are more stable than the 3 pcs 8 pin ends.),16 pin(12+4) male end to plug into the video graphics card;
Compatibility: Compatible with common non-modular PSUs and semi-modular PSUs with PCIe 8 pin male cable;
Compatibility: Compatible with all 16 pin graphics cards such as: Nvidia GeForce RTX 3090Ti 3080ti 4080 4090 4090ti etc.;(Note: Do not work with 12 pin GPU like GeForce RTX 3090 Series GPU. Only support 12+4pin GPU.)