On your 3XS systems you have the "TEMJIN" J05S-T case as an option. According to the temjin site this has a built in thermal sensor display and case fan control, and the picture also shows this.
But when you click on the info button the screen that pops up shows a "TEMJIN" J05S with no thermal sensor etc, and the picture lacks it as well.
So which is it? My guess is the version without the sensors as its 25p cheaper than the black version which def doesn't have it!
Cheers
Camalbitboy