E-Power Tiger EP-550P5-T1 550w Modular PSU
 

"An added feature with the E-Power Tiger is a dedicated fan cable which is
presumably hooked up to a thermistor type of fan speed control, similar to the
main 120mm fan. It might have been nice to sleeve this cable as well, but at
least the connectors are both 4-pin and 3-pin. My only gripe with the cables
is the lack of quick-disconnect Molex plugs. Many power supplies in equal or
lesser price brackets are incorporating quick disconnects, and I find them
invaluable time savers."

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