It's not original - plastic is much harder than the original back cover and more slippery. Not worth the price of $7-8, just because I've bought better quality ones for less money. I would have rated this higher than 2 stars if it weasn't for the straight out lie that it is original, genuine and so on - all this is just to mislead customers into thinking it's an originla xiaomi back cover, which is clearly not. PS: The letter I fell off when I tried to peel off the black tape on the back. None of my letters on the original cover ever fell off, even though I was using the phone without a case for quite som time now. Also, thereis no protective plastic/ glass on the IR port - it's just a hole. Holes for the speaker are not drilled very well - you can see it in the uploaded picture.
Very good quality, thanks.