What is the largest size of an SD card

You may have been debating about the largest size of a memory card and yet you don't know but I will clear the air today And give you the official
Highest size of an SD card and it prise.

The SD card is currently in the market and it's quite affordable for everyone to buy. According to WD, over 150 billion apps are expected to be installed in 2017, and with the new microSD, users will be able to transfer files upto 100MB/s speed and goes as SDXC UHS-I class of a card. It is rated as App Performance Class A1, a rating that signifies that the card can run apps as well.
sandisk-400GB

The company also introduced the SanDisk iXpand Base for iPhones that enables Apple users to automatically back up files and photos on the charger/portable hard drive.

Coming to the price of this newly launched 400GB SD card, it's set to be sold for $249,99 (about N90,000 in Naira), and also comes with a 10years warranty.

What do have to say about the memory card and do you think lower Android versions will support it?