The CORSAIR COMMANDER DUO Lighting and Fan Controller unites PWM and iCUE LINK ecosystems with a single device that is both flexible and powerful. It has two modes; as an ARGB fan controller supporting up to 12 daisy-chained PMW ARGB fans and as an iCUE LINK bridge when a System Hub is attached. Fan control and RGB lighting and can easily be synchronized across both fan types, letting you easily customize your build. Two included temperature sensors let you examine temps in any location inside a PC or on components that don't include a sensor, making it a useful upgrade for any PC. A magnetic back allows for easy installation in any PC. Tech Specs: Dimensions (mm): 92mm x 52.9mm x 18.7mm Fan Headers: Two (4-pin PWM) ARGB Headers: Two (3-pin ARGB) iCUE LINK Port: Two Temperature Sensor header: Two Max RGB LEDs per ARGB header: Fifty Operating System Requirements: Latest iCUE software, Windows 11 Box Contents: 1x COMMANDER DUO, 1x USB Cable, 2x Temperature Sensor, 2x iCUE LINK Bridge Connector, 2x Tape