More than you think !!
Only need a few MagicCUBE then you can combine all your RX1 as you want.
2. 4 or 6 pieces even more!
You can use one RX1 individually and also can use so many RX1 at the same time by MagicCUBE and ATOMCUBE APP to be a 60W keylight.
MagiCUBE edge clip * 2set
MagiCUBE center clip * 1set