What is the Max Capasity for the PR4100

I am getting the PR4100 and want to know the Max Capacity for the drives. I have 4 12TB, but if it maxes out at 40, I will looses 8. If I do 2 12tb and 2 6tb can I do the raid?

It can take 12TB HDD and up to 14TB at this time. You can find the list of compatible HDD here - https://support-en.wd.com/app/products/product-detail/p/139#WD_compatibility

Thank you for the reply. So will I still get the Full 48tb if I use 4 12tb drives?