CPU cable: CPU 8pin male connector connects to the power supply (Note: 8pin male connector is ATX 8pin, not pci-e 8pin), CPU 8pin (4+4) male connector connects to the motherboard, Note: 8pin and 4+4 male connectors are not interchangeable) Designed for motherboards only not for graphics cards: Compatible with motherboards with ATX 4-pin or 8-pin ports (removable CPU 8-pin (4+4) end can be used as EPS ATX 8-pin or P4 ATX 4-pin by sliding 4-pin top/bottom). Compatible with Corsair modular power supplies only: AX760I/AX860I/AX1200I/AX1500I/AX760/AX850/AX860/HX1200I/HX1000I/HX850I/HX750I/RM1000I/RM850I/RM750I/RM650I/RM1000X/RM850X/RM750X/RM650X/RM550X/RM1000/RM850/RM750/RM650/RM550/RM450/SF750/SF600/SF450/HX750/HX1200/TX850M/TX750M/TX650M/CX750M/CX650M/CX550M; (Note: Not applicable to AX1200 and EVGA PSUs. ) Product parameters: 25 inches (63 cm), Specification: 1007-18AWG (standard tinned copper wire), Quantity: 1pcs, (Note: Cannot be used with GPUs.) NOTE: Not for use with GPUs (graphics cards). This cable does not work with EVGA PSU's. It is only designed for certain types of Corsair PSU's listed. If you use other incompatible brands or types of PSUs, you are sure to burn or damage your motherboard, and we cannot be held responsible for incorrect use or installation.