Lian Li UNI Fan SL120 3 Pack Black – with Controller (ARGB 120mm LED PWM Daisy-

 
Revolutionary fan with modular design, interlocking fan that can be linked up and operate with a fan and RGB cable. The included UNI HUB contains 4 designated UNI FAN ports. Each port can connects to a cluster of 4 UNI FANs via the cable module, allowing users to control up to 16 UNI FANs in one go. The L-Connect software enables users to control and adjust fan RPM, colors, brightness and lighting effects with extreme ease. moreover, pass control to the motherboard.