it says it on their homepage and a customer service rep told me that a eatx motherboard fits in the case but im waiting to hear back from lian li or anyone to let me know if my lian li o11 xl rog case will fit a eatx motherboard with a 2 fan radiator to the right of the motherboard. i know a atx motherboard and the radiator fits to the right of it but it looks pretty close for a eatx with a radiator. i currently have two 360mm radiators and one 240mm radiator connected to my evga rtx 3080 ti ftw3 ultra hybrid and i have the gpu radiator to the right of my atx motherboard but im trying to install a eatx motherboard in my lian li o11 xl rog case if possible?