iCUE LT100 Smart Lighting Tower Expansion Kit (Requires iCUE LT100 Smart Lighting Towers Starter Kit, expandable up to 4 Towers) Enhance your ambient lighting setup with the CORSAIR iCUE LT100 Smart Lighting Tower Expansion Kit, adding another tower with 46 RGB LEDs that synchronizes with your system, games, and media. 1x Expansion Unit 1x Expansion Cable 1.5M