Hello, please check this list: Dell EMC PowerVault MD32XX/36XX Series Support Matrix | Dell US thanks
Hi, I have a R720 in my homelab with a H710Mini and 6 4TB SAS drives in a RAID 5. I'd like to add more storage to. Can I add a SAS6E and connect to a MD3200? Which is the proper cable if that works? Also what is the largest SAS drive that you can install in a MD3200?  
R730 and MD3200 connectivity and capacity