D10 is designed by topping A-Z. Anything not coming from/with topping name is fake and counterfeit, period.
If Topping did design it, it still can be from the same factory. It's not uncommon for a factory in China to turn around and manufacture the design for someone else. If that's the case, it might be IP infringement, but "fake" or "counterfeit" doesn't accurately describe the product.