Startechcom 4 pin fan power extension amp splitter cables startechcom fan4ext12 the startechcom fan4ext12 300mm 4 pin fan power extension cable lets you extend the power connection between a computer power supply and a 4 pin fan this gives you the freedom to conveniently install the fan where needed in the computer case without having to stretch or strain the connectionbacked by startechcoms lifetime warranty startech fan4ext12 300mm 4 pin fan power extension cable mf