The Multi-connector, included free in every Zalman power supplys 5V or 12V pwer to any additionall fans that a user may wish to install. Connect it to the power supplys output connector and simply attach the fans to the 3-pin connectors at the other end.

• Cooler Master Sleeve Bearing 120mm Silent Fan for Computer Cases, CPU Coolers, and Radiators (Value 4-Pack)
• B000MGG6SC
• Cooler Master Super Fan 120 - Ball Bearing 120mm Silent Cooling Fan for Computer Cases, CPU Coolers, and Radiators (Value 4-Pack)
• B001DI65AM
• Syba SY-CAB65007 3 Pin Female to 2 x 3 Pin Male Connectors Fan Power Extension Y Cable (7.75 Inches)