Difference between dtl-h30001 and 30001 s?

I can't find any info on the differences. The unit is seems different and loads pstool items.

 

Simple, a "S" series = "Simple" it does not have any memory card access at all, and does not load some extra services that a normal TEST does, or even a PS2..

 

As far as I have read and been told the difference is the name on the top only.

 

Well see, i HAD a S..has NO memory card support at all ! (also know others = same thing!)