Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
You have to use a case that has an SAS Expander. If it is a case that has less external SAS lanes than it has drives it should include an expander.
You cannot use something that has SATA port multipliers, but IMHO those cases with SFF-8088 connectors are rare or do not exist at all.
Beware of incompatibility problems between SAS expanders and SAS controllers from different vendors (use something with LSI expanders).