Antec only advertises the fact that this case can take 4 hard drives. No more. Thus no defect.
There are plenty of cases who do not offer you the possibilty to insert a hard drive into an external 3.5 inch bay. Having reviewed *a lot* of cases in my three years at TPU, trust me there are quite a few. I could dig some reviews up for you if you want.
My point still stands though. Antec advertises the following:
9 Drive Bays:
- 3 x 5.25" external drive bays
- 2 x 3.5" external drive bays
- 4 x 3.5" internal drive bays in individual trays with silicone grommets to absorb hard drive vibrations
Nowhere does it say, that the two external drive bays can be used for hard drives, they only imply (by being external), that you may install every external 3.5 inch device into these bays. Thus you cannot expect it to work (or in other words: you are not getting less than you are told). Sure, it would have been great to see that added functionality, but it is not something they promise you when buying the case, nor do they offer you this option anywhere.