I have checked many websites bechmarks and founded that Sandisk Extreme Pro A2 card are poor in read write speed than A1 cards their sequetial read and write speed is only finded in sandisk card readers Not in mobile and devices and their Random Read speed and Radom write speed is too low (approx half of a1 cards) and they recommended to purchase to UHS1 A1 Cards then UHS1 A2 cards and they are hard to find and more expensive than A2 cards .
Is it write if yes then why are a2 latest models are ecomoical than old a1 cards
