G Speed shuttle XL maximum capacity

I have a g speed shuttle its about 5 years old thunderbolt 3 , i bought it with 8 x 6tb drives, i would like to replace all the drives to increase capacity , anybody know if there is a max i can put in?
thank you
Mark

Hi @markfeck
Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting: