The Longforte slates (like most now) come in the light grey boxes that just say "Photo Slate". Like your picture on the right.
I don't think many suppliers use the black "Rock Photo" packaging anymore.
Obviously there has been a change in the way they are made but I'm hoping this is a blip and as long as enough people complain, the manufacturers will go back to the old style eventually.
I guess until then we're stuck with them.
On the bright side - If you can get it working there'll be less competition ;)