1. Specifically designed to meet the specifications of 12VHPWR PCIe 5.0 graphics cards, this cable seamlessly connects to RTX 3090 Ti/4090/4080/4070 Ti/other 40series GPUs. It works with original PSU 1to4 power adapters or PCIe 5.0 power cables to ensure stable and reliable performance. 2. Note: This is an extension cable only. Do not connect it directly to your power supply. Always use a PSU with sufficient wattage as per the manufacturer's guidelines. For performance, a 1000W or higher power supply is recommended for RTX 3090 Ti/4090/4080 graphics cards. 3. Built with 16AWG tinned copper wiring and alloy copper connectors, the cable supports up to 600W power delivery, ensuring stable operation, safety under heavy loads, and eliminating issues like frame drops, screen flickering, or power interruptions. 4. The maletofemale connector design replaces the bulky and unsafe original 1to4x 8pin cable setup. This extension cable offers a safer and more aesthetically pleasing solution. 5. Includes 4 cable combs for neat and organized cable management, helping you achieve a clean, uniform look for your build.