Question about Corsair Lighting PRO Expansion Kit

If I buy this expansion kit, and already have the LL120's that have the Lighting Node PRO and PWM control, I can just connect (Connecting two lighning pro LED cables to eachother to make 2 x 20cm cables) these 2 cables to the splitter, controlling both fans and the 2 stips of LEDs. Is this possible? Thank you