Product description Zalman ZM-SF120A3 RGB Case Fan Triple Pack + Z-Sync Hub features Zalman's patended technology Dual Blade Impeller. The dual flow structure generated by Zalman increases the CFM by pulling the winnd from the outside to the inside and increases the wing straightness to create strong cooling performance. In addition, the fan has efficient airlow and has low noise. The fan also supports motherboard's addressable RGB sync via 3-pin, by connecting to the motherboard you can choose from various colours and colour synchronisation can be done via software. The hub features 8 addressable RGB connectors to make choose your own lighting effects! model : ZM-SF120A3 tag : Case Fans