Mad Catz has had a long history of making some of the most memorable and used arcade sticks during their time.  From their Tournament Edition to their TE2 and TE2+ model, these designs dominated the fight stick market.   One of their more unique designs is their mini Fight Stick Alpha.  What's unique about this controller is that it's purely a 6-button layout configuration with the intention of using full size pushbuttons.

Why this is significant is this allowed the user the freedom to upgrade their pushbutton (and joystick) to the plethora of choices from both Sanwa Denshi and Seimitsu.  Their competitors would use proprietary smaller sized pushbuttons that were not replaceable.  

These units are brand new (old stock), never used.  We opened up each of them to make sure the pcb was fully functional as these are older models.  

If you wanted a compact case (without the extra buttons), consider picking this up as it's a gem.