We have not confirmed compatibility on the 3090 K|NGP|N, but, our series 2 kits were compatible with the previous EVGA AIO style GPUs. https://store.cablemod.com/product/cablemod-aio-sleeving-kit-series-2-for-evga-clc-nzxt-kraken/

Again - this may not be compatible though, just want to clarify that. If you do want to try one though, this would be the one to test. :)

Amazon link as well if it helps: https://www.amazon.com/dp/B073RYVGC1