StarTech.com 4-pin Fan Power Extension & Splitter Cables - StarTech.com FAN4EXT12, The StarTech.com 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 connection.Backed by StarTech.com\'s lifetime warranty. StarTech FAN4EXT12 300mm 4-pin Fan Power Extension Cable - M/F