And another question what happen with this?
and this
The second picture I believe is actually two objects. I think the top black object is the PS4 whilst the vents and the plastic underneath that is the vertical mounting stand. In the picture it looks like the PS4 is about to be placed on the stand or is being removed from the stand. There appears to be vents on both sides of the PS4, so when it's standing upright it makes sense that the stand is ventilated too, otherwise you'd be blocking half of the side vents.
Below is a pic of how I believe the vent looks from the end. Please forgive the crudity of this model.
If you look at the pic below, it appears that the PS4 is sitting flush on top of the stand and doesn't sit in a slot, so it must be that there's something sticking up into the side groove of the PS4 to keep it steady. It also makes sense that the vent in the stand is painted white so it's easier to see when you slide the PS4 down onto it.
Also notice in the picture below the stand appears to be made up of two parts, with holes in the front and side to allow air to pass. That may be where the first picture comes from somehow.