Well I have owned 5 different saturns in the past, 3 model 1's and 2 model 2's. The model 1's were all 20 pins and they all had their "guts" on the bottom casing. This is the first time I have seen this perticular version of the Saturn. It might be a first production run, because the manufacture date on the bottom is April 1995. Anyways, I shouldn't be nitpicking because I got this Saturn brand new in the box for $40 with 4 games. The games were Daytona USA, NBA Action 98, Sonic 3D Blast and Panzer Dragoon all complete w/cases and instructions.