We have another offering from Sentey and their "Extreme Division" line of cases today. This time we are going to take a look at their GS-6000 Optimus mid-tower case. Previously we looked at the Arvina GS-6400 which came away with top honors. With the Optimus, Sentey looks to be going for a budget version of the Arvina in the mid-tower size. The Optimus comes in two varieties, the GS-6000 which is all black and the GS-6000R with red highlights; we have the former on hand today.