Amazon.com: Cooler Master Mobius 120 OC High Performance Interconnecting Ring Blade Fan, PWM Fan Speed Cable Toggle, Metal Motor Hub, Double Ball Bearing for PC Case, Liquid and Air Cooler (MFZ-M2NN-32NPK-R1) :
Cooler Master SickleFlow 120 RGB Fan MFX-B2DN-18NPC-R1 B&H Photo