I bet you havent run out of 90 leds limit at least at some of 8 total farbwerk360 channels.
E.g. Splitty4 has "out" connector, and using rgbpx extender cable with
this connector you would be able to connect EKWB D-RGB waterblock.
You may not even need cable and mentioned connector, as Splitty4 has a mobo-type 3-pin connector labeled "Asus" on it.