The extension cable connects your computer?? s power supply to the Motherboard. 24 Pin male to 24 Pin female plug and play convenient and fast. Safety buckle on the plug to prevent accidental fall off. 12 Inches (30cm) 1007 18AWG Tin-plated copper wire strong conductivity corrosion and oxidation resistance. The wire sheath is made of PVC insulated flame retardant and safer. 24Pin male can be disassembled into (20Pin + 4Pin) males 24Pin female cannot be disassembled.