It looks too bulky for a race that is supposed to be quick and agile. It looks like movement in that armor would be tedious. I think it would be more suited for an orc.
That appears to be a Heavy Iron set, tailored for the Kajhiit's body. Likely the same Iron armor that the Nord is wearing in the Riverwood screenshot.
race specific armour is a good idea but then how good it would be compared to all the other armor
It's probably just "Iron" cuirass, but with different meshes for each race, depending on how different they look. Or maybe we could take a leap of faith, and say that's a Kajhiit style iron armor, that any race can wear, and that's just how it looks, more or less, on every race?