Is there any difference between original and fake SMD NRF24L01?

Question

Electronics

There is such a scarf for $0.55/piece
ru.aliexpress.com/item/Free-shipping-10pcs-lot-SMD...
And there is one for $1.73/piece!
ru.aliexpress.com/item/5pcs-lot-Power-enhanced-ver...
As you can see from the pictures, they are made on different components.
Has anyone compared them? Is there a difference?

Answer 1

The difference is, firstly, in the quality of the elements (error, change in characteristics with a change in temperature is greater). The quality of the board materials and the manufacturing method, due to which the tracks can simply peel off from the board, and most importantly, the microcircuit is compiled according to the datasheet - there is a high probability that it will not work quite correctly.