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This all-in-one extension cable set includes a PCIe 5.0 12VHPWR 16Pin GPU power cable and a 24Pin ATX motherboard extension cable. It converts the new 12+4 16Pin interface to 4 standard 8Pin ports, perfectly matching mainstream power supplies. Delivers consistent and sufficient power output to support high-load gaming, overclocking and long-time operation of RTX 3090Ti, 4070Ti, 4080, 4090 graphics cards. Durable wire material ensures low heat generation and excellent conductivity. Flexible and easy to install, it tidies up messy internal wires, enhances chassis air circulation and extends hardware service life. Ideal for PC assembly, cable replacement and aesthetic modification.