Lian Li UNI FAN SL140 V2 takes fan technology to the next level, revolutionizing your cooling setup. The innovative interlocking feature enables seamless connection and simultaneous control of up to four fans via the Lian Li fan controller. Achieve improved cable management by daisy chaining two clusters of three fans each. Enjoy exceptional performance with whisper-quiet operation. Take full control of your fan's functions, including impressive RGB capabilities, using the intuitive Lian Li L-Connect 3 software. The UNI FAN SL V2 revised its interlocking style to connect up to 6 fans in two clusters to a single controller port, making cable management simpler. With the new 18 cm extension cable, the ability to bridge two clusters of fans to create a 3+3 daisy-chained cluster is offered. These 6 fans can then be connected to a single port on the SL V2 UNI HUB controller. The new daisy-chaining solution reduces the number of cables needing to be managed at the back of the case and enables new lighting effects which can be continuous between the two bridged clusters. The cable module is designed to plug in and sit flush with the fan frame, which doesn't require extra space for the module and reduces clearance issues with radiator fittings. The interlocking keys on each fan are removable to improve compatibility with radiator fittings. Compatible with Lian Li UNI FAN SL "V2" Triple Pack series only. Improved daisy chain design to connect 2 clusters of fans. SL140 V2 fan frame thickness is 28mm to provide 10% improved airflow compared to V1.