The question you want to ask is whether its the same controller as the S3, or the kind in the S4. I would imagine it uses the S3 controller, in which case it would act just like an S3 but show twice as many chips/hashes
It is like 2x S3's in one. It is twice the hashing boards. It has 4 hashing boards with 16 chips each, 64 chips total. The controller is similar to the S3 but has 4 hashing board connections (or whatever they are called).
The hashing boards are S3 boards with little to no revisions. [See
here for the S3 board]
The controller is S4 in architecture but its not the same board. [See
here for the S3 controller and
here for the S4 controller.]