What is one difference between the DS3200 and the DS3400?

A.
The DS3400 holds more drives than the DS3200

B.
The DS3200 has a SAS interface and the DS3400 has a fibre channel interface

C.
The DS3200 can be direct attached while the DS3400 cannot

D.
The DS3200 supports SAS drives and the DS3400 supports FC drives