Item Descriptions:-Function : This ATX power adaptor cable can convert the conventional 24-pin power supply into an 8-pin dedicated.-Compatibility : Compatible with Dell Optiplex 3020/3040/3046/5040/7020/7040/7060/9020, H61, H81, Q77, Q87, B75, A75, Q75, Q65.-12VSB boost panel : The 24-pin to 8-pin power adaptor cable has a 12VSB boost panel, which can boost the +5VSB of the traditional power supply to the +12VSB.-Note : Not compatible with Dell Inspiron series such as : 3653 3650 3655 3250 3252 3268 3660 3667 3668 3670. This cable was only designed for some types as listed in the 3rd Point. In order to avoid any compatible problems, please carefully check your PC type or contact us if you are not sure about it.-Package includes : 2pcs 24 pin to 8 pin adapter motherboard adapter cable.Package:2pcs 24 pin to 8 pin ATX Power CableItem Specifications:Material:Copper Wire, PlasticConnector A:24 pinConnector B:8 pinLength:30cm